320132331 has 56 divisors (see below), whose sum is σ = 510684576. Its totient is φ = 200154240.

The previous prime is 320132303. The next prime is 320132353. The reversal of 320132331 is 133231023.

320132331 is a `hidden beast` number, since 320 + 13 + 2 + 331 = 666.

It is not a de Polignac number, because 320132331 - 2⁵ = 320132299 is a prime.

It is a super-2 number, since 2×320132331² = 204969418702987122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320132431) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1022631 + ... + 1022943.

Almost surely, 2^320132331 is an apocalyptic number.

320132331 is a deficient number, since it is larger than the sum of its proper divisors (190552245).

320132331 is an equidigital number, since it uses as much as digits as its factorization.

320132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 320132331 is about 17892.2422015800. The cubic root of 320132331 is about 684.0846501883.

Adding to 320132331 its reverse (133231023), we get a palindrome (453363354).

It can be divided in two parts, 320 and 132331, that added together give a cube (132651 = 51³).

The spelling of 320132331 in words is "three hundred twenty million, one hundred thirty-two thousand, three hundred thirty-one".