111320112 has 20 divisors (see below), whose sum is σ = 287577080. Its totient is φ = 37106688.

The previous prime is 111320093. The next prime is 111320123. The reversal of 111320112 is 211023111.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159537 + ... + 1159632.

It is an arithmetic number, because the mean of its divisors is an integer number (14378854).

Almost surely, 2^111320112 is an apocalyptic number.

111320112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111320112 is an abundant number, since it is smaller than the sum of its proper divisors (176256968).

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

111320112 is a wasteful number, since it uses less digits than its factorization.

111320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319180 (or 2319174 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 111320112 is about 10550.8346589263. The cubic root of 111320112 is about 481.0510994103.

Adding to 111320112 its reverse (211023111), we get a palindrome (322343223).

The spelling of 111320112 in words is "one hundred eleven million, three hundred twenty thousand, one hundred twelve".