113111100 has 72 divisors (see below), whose sum is σ = 363639920. Its totient is φ = 30162240.

The previous prime is 113111099. The next prime is 113111137. The reversal of 113111100 is 1111311.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18247 + ... + 23646.

Almost surely, 2^113111100 is an apocalyptic number.

113111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113111100 is an abundant number, since it is smaller than the sum of its proper divisors (250528820).

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

113111100 is a wasteful number, since it uses less digits than its factorization.

113111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41916 (or 41903 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

The square root of 113111100 is about 10635.3702333299. The cubic root of 113111100 is about 483.6172040995.

Adding to 113111100 its reverse (1111311), we get a palindrome (114222411).

The spelling of 113111100 in words is "one hundred thirteen million, one hundred eleven thousand, one hundred".