Fatto generale: 45103 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 45103 is an unremarkable number.
Trivia: 45103 is a boring number.
Data storica: June 27th is the day in 1844 that Joseph Smith, Jr., founder of the Latter Day Saint movement, and his brother Hyrum Smith, are murdered by a mob at the Carthage, Illinois jail.