129313038732 has 24 divisors (see below), whose sum is σ = 305549798400. Its totient is φ = 42558721296.

The previous prime is 129313038649. The next prime is 129313038737. The reversal of 129313038732 is 237830313921.

It is a super-2 number, since 2×129313038732² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129313038737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68202132 + ... + 68204027.

It is an arithmetic number, because the mean of its divisors is an integer number (12731241600).

Almost surely, 2^129313038732 is an apocalyptic number.

129313038732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129313038732 is an abundant number, since it is smaller than the sum of its proper divisors (176236759668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129313038732 is a wasteful number, since it uses less digits than its factorization.

129313038732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136406245 (or 136406243 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 129313038732 in words is "one hundred twenty-nine billion, three hundred thirteen million, thirty-eight thousand, seven hundred thirty-two".