129233690631 has 6 divisors (see below), whose sum is σ = 186670886480. Its totient is φ = 86155793748.

The previous prime is 129233690609. The next prime is 129233690639. The reversal of 129233690631 is 136096332921.

129233690631 is a `hidden beast` number, since 1 + 2 + 9 + 2 + 3 + 3 + 6 + 9 + 0 + 631 = 666.

It is not a de Polignac number, because 129233690631 - 2⁶ = 129233690567 is a prime.

It is a super-2 number, since 2×129233690631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129233690639) 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, 7179649471 + ... + 7179649488.

Almost surely, 2^129233690631 is an apocalyptic number.

129233690631 is a deficient number, since it is larger than the sum of its proper divisors (57437195849).

129233690631 is a wasteful number, since it uses less digits than its factorization.

129233690631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14359298965 (or 14359298962 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The spelling of 129233690631 in words is "one hundred twenty-nine billion, two hundred thirty-three million, six hundred ninety thousand, six hundred thirty-one".