323131310012331 has 24 divisors (see below), whose sum is σ = 484242810206064. Its totient is φ = 215327089393920.

The previous prime is 323131310012309. The next prime is 323131310012359. The reversal of 323131310012331 is 133210013131323.

323131310012331 is a `hidden beast` number, since 3 + 2 + 3 + 1 + 3 + 1 + 310 + 0 + 12 + 331 = 666.

It is not a de Polignac number, because 323131310012331 - 2³⁸ = 322856432105387 is a prime.

It is a super-2 number, since 2×323131310012331² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 323131310012295 and 323131310012304.

It is not an unprimeable number, because it can be changed into a prime (323131310012831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288897310 + ... + 290013651.

It is an arithmetic number, because the mean of its divisors is an integer number (20176783758586).

Almost surely, 2^{323131310012331} is an apocalyptic number.

323131310012331 is a deficient number, since it is larger than the sum of its proper divisors (161111500193733).

323131310012331 is an equidigital number, since it uses as much as digits as its factorization.

323131310012331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578913273 (or 578913261 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 323131310012331 its reverse (133210013131323), we get a palindrome (456341323143654).

The spelling of 323131310012331 in words is "three hundred twenty-three trillion, one hundred thirty-one billion, three hundred ten million, twelve thousand, three hundred thirty-one".