I saw one of my friends online in Skyrim earlier today and it said he was level 101. I asked him how he got to it and he said that he got past 100 just by playing normally. So obviously he was trolling or I misunderstood. I have no proof of this anyway. Is thie number shown your total levels across all of your characters? That is the only logical explanation I can think of, considering I can't find anything online for getting past level 81 in the game.