113231172 has 24 divisors (see below), whose sum is σ = 264876192. Its totient is φ = 37648000.

The previous prime is 113231171. The next prime is 113231179. The reversal of 113231172 is 271132311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (113231171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6954 + ... + 16577.

It is an arithmetic number, because the mean of its divisors is an integer number (11036508).

Almost surely, 2^113231172 is an apocalyptic number.

113231172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113231172 is an abundant number, since it is smaller than the sum of its proper divisors (151645020).

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

113231172 is a wasteful number, since it uses less digits than its factorization.

113231172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23939 (or 23937 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 113231172 is about 10641.0136735181. The cubic root of 113231172 is about 483.7882699794.

Adding to 113231172 its reverse (271132311), we get a palindrome (384363483).

The spelling of 113231172 in words is "one hundred thirteen million, two hundred thirty-one thousand, one hundred seventy-two".