7:05 AM PT -- We just got Nic's annulment docs, and they are really something. He says he and Erika were wasted when they decided to get hitched. Nic says, "[Erika] suggested to [Nic] that they should marry, [Nic] reacted on impulse and without the ability to recognize or understand the full impact of his actions."

He goes on to say the marriage was a fraud because she didn't disclose "the full nature and extent of her relationship with another person." He also says she didn't disclose her criminal history.

And, he justifies the annulment by saying they had "such conflict in personalities and dispositions that are so deep as to render the two incompatible in marriage."

3/29 6:30 AM PT -- We got photos of Nic and Erika Saturday night -- hours after they got married -- leaving the Bellagio hotel, and clearly not happy with each other. Eyewitnesses say she was yelling at him.

And, just before they got married they were also in a heated argument.

Nicolas Cage and Erika Koike got married 4 days ago ... and he's already sick and tired of the union because he's filed for an annulment ... according to court records obtained by TMZ.

Nic and Erika tied the knot Saturday in Las Vegas, the very same day they applied for a marriage license. It sounded impulsive at the time, and turns out it was, because Wednesday Nic went back to court and asked a judge for an order making it so the marriage never happened.

Nic and Erika have been together since April 2018. He's been married 3 previous times to Alice Kim, Lisa Marie Presley and Patricia Arquette.

We thought something was up a few days ago after a video surfaced showing them at the courthouse where they got the marriage license. You see Nic -- who may have had a drink or 2 -- suggest Erika was after his loot.

Congrats, and we're really sorry.