12516013131602 has 4 divisors (see below), whose sum is σ = 18774019697406. Its totient is φ = 6258006565800.

The previous prime is 12516013131593. The next prime is 12516013131637. The reversal of 12516013131602 is 20613131061521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12464225481841 + 51787649761 = 3530471^2 + 227569^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3129003282899 + ... + 3129003282902.

Almost surely, 2^{12516013131602} is an apocalyptic number.

12516013131602 is a deficient number, since it is larger than the sum of its proper divisors (6258006565804).

12516013131602 is an equidigital number, since it uses as much as digits as its factorization.

12516013131602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258006565803.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 12516013131602 in words is "twelve trillion, five hundred sixteen billion, thirteen million, one hundred thirty-one thousand, six hundred two".