331432112402631 has 24 divisors (see below), whose sum is σ = 494317279507584. Its totient is φ = 213767054182080.

The previous prime is 331432112402597. The next prime is 331432112402653. The reversal of 331432112402631 is 136204211234133.

331432112402631 is a `hidden beast` number, since 3 + 3 + 1 + 4 + 3 + 2 + 1 + 12 + 4 + 0 + 2 + 631 = 666.

It is not a de Polignac number, because 331432112402631 - 2²³ = 331432104014023 is a prime.

It is a super-2 number, since 2×331432112402631² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331432112402681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165992236 + ... + 167977041.

It is an arithmetic number, because the mean of its divisors is an integer number (20596553312816).

Almost surely, 2^{331432112402631} is an apocalyptic number.

331432112402631 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331432112402631 is a deficient number, since it is larger than the sum of its proper divisors (162885167104953).

331432112402631 is a wasteful number, since it uses less digits than its factorization.

331432112402631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333972871 (or 333972868 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 331432112402631 its reverse (136204211234133), we get a palindrome (467636323636764).

The spelling of 331432112402631 in words is "three hundred thirty-one trillion, four hundred thirty-two billion, one hundred twelve million, four hundred two thousand, six hundred thirty-one".