231123272 has 32 divisors (see below), whose sum is σ = 449479800. Its totient is φ = 111283200.

The previous prime is 231123271. The next prime is 231123337. The reversal of 231123272 is 272321132.

It can be written as a sum of positive squares in 4 ways, for example, as 194714116 + 36409156 = 13954^2 + 6034^2 .

It is not an unprimeable number, because it can be changed into a prime (231123271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105872 + ... + 108032.

Almost surely, 2^231123272 is an apocalyptic number.

It is an amenable number.

231123272 is a deficient number, since it is larger than the sum of its proper divisors (218356528).

231123272 is a wasteful number, since it uses less digits than its factorization.

231123272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657 (or 2653 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 231123272 is about 15202.7389637526. The cubic root of 231123272 is about 613.6883690601.

The spelling of 231123272 in words is "two hundred thirty-one million, one hundred twenty-three thousand, two hundred seventy-two".