Is Superman immortal? Does he age? We've seen him resurrect after defeating Doomsday and we know that the Earth's Sun gives him many abilities. This is what Google said:
"The answer is Yes and No, Yes; Superman is vastly durability and his regeneration healing factors make him near Immortal. He can live without gating age, if he stay very close to sun (yellow, blue) as we seen in Superman Prime one million".