II Thessalonians 2:3 "Let no man deceive you by any means: for that day shall not come [it will not be], except there come a falling away first, and that man of sin be revealed, the son of perdition;"
The word "perdition" means "one that perishes". Satan and only Satan has already been condemned to die [to perish] by God. Satan's judgment day has come already back in the first earth age, and he will have no part in the Great White Throne judgment, or any other judgment yet to come. He has already been judged, and sentence by God to death "perdition" [Ezekiel 28 covers this judgment].
Revelation 17:8 "The beast that thou sawest was, and is not; and shall ascend out of the bottomless pit, and go into perdition: and they that dwell on the earth shall wonder, whose names were not written in the book of life from the foundation of the world, when they behold the beast that was, and is not, and yet is [shall come]."
This beast "thou [John] sawest", was in the first earth age; and is not on this earth now, as it is written in Revelation 12:7. Satan is in heaven being our accuser, and will be cast out to this earth very shortly by Michael.
"And shall ascend out of the bottomless pit; and go into perdition;" Who is he again? He is Satan the Antichrist. Satan is not a man born of woman, but a "supernatural arch angel". In Ezekiel 28 it is written that Satan [Lucifer] is the most beautiful of all God's created beings.