11105905900 has 18 divisors (see below), whose sum is σ = 24099816020. Its totient is φ = 4442362320.

The previous prime is 11105905831. The next prime is 11105905901. The reversal of 11105905900 is 950950111.

It is a super-2 number, since 2×11105905900² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11105905901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55529430 + ... + 55529629.

Almost surely, 2^11105905900 is an apocalyptic number.

11105905900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11105905900 is an abundant number, since it is smaller than the sum of its proper divisors (12993910120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11105905900 is a wasteful number, since it uses less digits than its factorization.

11105905900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111059073 (or 111059066 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 31.

The spelling of 11105905900 in words is "eleven billion, one hundred five million, nine hundred five thousand, nine hundred".