12513029531 has 2 divisors, whose sum is σ = 12513029532. Its totient is φ = 12513029530.

The previous prime is 12513029527. The next prime is 12513029579. The reversal of 12513029531 is 13592031521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12513029531 - 2² = 12513029527 is a prime.

It is a super-2 number, since 2×12513029531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12513023531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256514765 + 6256514766.

It is an arithmetic number, because the mean of its divisors is an integer number (6256514766).

Almost surely, 2^12513029531 is an apocalyptic number.

12513029531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513029531 is an equidigital number, since it uses as much as digits as its factorization.

12513029531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The spelling of 12513029531 in words is "twelve billion, five hundred thirteen million, twenty-nine thousand, five hundred thirty-one".