113111112 has 32 divisors (see below), whose sum is σ = 285583680. Its totient is φ = 37329600.

The previous prime is 113111099. The next prime is 113111137. The reversal of 113111112 is 211111311.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20908 + ... + 25755.

It is an arithmetic number, because the mean of its divisors is an integer number (8924490).

Almost surely, 2^113111112 is an apocalyptic number.

113111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113111112 is an abundant number, since it is smaller than the sum of its proper divisors (172472568).

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

113111112 is a wasteful number, since it uses less digits than its factorization.

113111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46773 (or 46769 counting only the distinct ones).

The product of its digits is 6, while the sum is 12.

The square root of 113111112 is about 10635.3707974852. The cubic root of 113111112 is about 483.6172212019.

Adding to 113111112 its reverse (211111311), we get a palindrome (324222423).

The spelling of 113111112 in words is "one hundred thirteen million, one hundred eleven thousand, one hundred twelve".