13131881381875 has 10 divisors (see below), whose sum is σ = 16409598975572. Its totient is φ = 10505505105000.

The previous prime is 13131881381803. The next prime is 13131881381887. The reversal of 13131881381875 is 57818318813131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-13131881381875 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10505504481 + ... + 10505505730.

Almost surely, 2^{13131881381875} is an apocalyptic number.

13131881381875 is a deficient number, since it is larger than the sum of its proper divisors (3277717593697).

13131881381875 is an frugal number, since it uses more digits than its factorization.

13131881381875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21011010231 (or 21011010216 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 58.

The spelling of 13131881381875 in words is "thirteen trillion, one hundred thirty-one billion, eight hundred eighty-one million, three hundred eighty-one thousand, eight hundred seventy-five".