11099043903 has 16 divisors (see below), whose sum is σ = 14926554720. Its totient is φ = 7335591936.

The previous prime is 11099043859. The next prime is 11099043911. The reversal of 11099043903 is 30934099011.

It is a Cunningham number, because it is equal to 105352²-1.

It is not a de Polignac number, because 11099043903 - 2¹³ = 11099035711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11099043913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298501 + ... + 333617.

It is an arithmetic number, because the mean of its divisors is an integer number (932909670).

Almost surely, 2^11099043903 is an apocalyptic number.

11099043903 is a deficient number, since it is larger than the sum of its proper divisors (3827510817).

11099043903 is a wasteful number, since it uses less digits than its factorization.

11099043903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36026.

The product of its (nonzero) digits is 26244, while the sum is 39.

The spelling of 11099043903 in words is "eleven billion, ninety-nine million, forty-three thousand, nine hundred three".