113951231 has 4 divisors (see below), whose sum is σ = 117031032. Its totient is φ = 110871432.

The previous prime is 113951209. The next prime is 113951249. The reversal of 113951231 is 132159311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132159311 = 23 ⋅5746057.

It is a cyclic number.

It is not a de Polignac number, because 113951231 - 2¹⁸ = 113689087 is a prime.

It is a super-2 number, since 2×113951231² = 25969766092830722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113951231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113954231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539845 + ... + 1539918.

It is an arithmetic number, because the mean of its divisors is an integer number (29257758).

Almost surely, 2^113951231 is an apocalyptic number.

113951231 is a deficient number, since it is larger than the sum of its proper divisors (3079801).

113951231 is an equidigital number, since it uses as much as digits as its factorization.

113951231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079800.

The product of its digits is 810, while the sum is 26.

The square root of 113951231 is about 10674.7941900535. The cubic root of 113951231 is about 484.8116050092.

The spelling of 113951231 in words is "one hundred thirteen million, nine hundred fifty-one thousand, two hundred thirty-one".