129311358431 has 2 divisors, whose sum is σ = 129311358432. Its totient is φ = 129311358430.

The previous prime is 129311358419. The next prime is 129311358467. The reversal of 129311358431 is 134853113921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129311358431 - 2⁶ = 129311358367 is a prime.

It is a super-2 number, since 2×129311358431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129311378431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64655679215 + 64655679216.

It is an arithmetic number, because the mean of its divisors is an integer number (64655679216).

Almost surely, 2^129311358431 is an apocalyptic number.

129311358431 is a deficient number, since it is larger than the sum of its proper divisors (1).

129311358431 is an equidigital number, since it uses as much as digits as its factorization.

129311358431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 41.

The spelling of 129311358431 in words is "one hundred twenty-nine billion, three hundred eleven million, three hundred fifty-eight thousand, four hundred thirty-one".