113961231 has 6 divisors (see below), whose sum is σ = 164610680. Its totient is φ = 75974148.

The previous prime is 113961203. The next prime is 113961233. The reversal of 113961231 is 132169311.

113961231 is a `hidden beast` number, since 1 + 13 + 9 + 612 + 31 = 666.

It is not a de Polignac number, because 113961231 - 2¹⁰ = 113960207 is a prime.

It is a super-2 number, since 2×113961231² = 25974324342070722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113961195 and 113961204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113961233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6331171 + ... + 6331188.

Almost surely, 2^113961231 is an apocalyptic number.

113961231 is a deficient number, since it is larger than the sum of its proper divisors (50649449).

113961231 is a wasteful number, since it uses less digits than its factorization.

113961231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12662365 (or 12662362 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 113961231 is about 10675.2625728832. The cubic root of 113961231 is about 484.8257864392.

The spelling of 113961231 in words is "one hundred thirteen million, nine hundred sixty-one thousand, two hundred thirty-one".