Fatto generale: 21103 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 21103 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 21103 is an uninteresting number.
Data storica: October 10th is the day in 1971 that Sold, dismantled and moved to the United States, London Bridge reopens in Lake Havasu City, Arizona.