Fatto generale: 4811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4811 is an uninteresting number.
Trivia: 4811 is an unremarkable number.
Data storica: March 3rd is the day in 2005 that Steve Fossett becomes the first person to fly an airplane non-stop around the world solo without refueling.