13131531713 has 2 divisors, whose sum is σ = 13131531714. Its totient is φ = 13131531712.

The previous prime is 13131531709. The next prime is 13131531857. The reversal of 13131531713 is 31713513131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9551543824 + 3579987889 = 97732^2 + 59833^2 .

It is a cyclic number.

It is not a de Polignac number, because 13131531713 - 2² = 13131531709 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131531613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565765856 + 6565765857.

It is an arithmetic number, because the mean of its divisors is an integer number (6565765857).

Almost surely, 2^13131531713 is an apocalyptic number.

It is an amenable number.

13131531713 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131531713 is an equidigital number, since it uses as much as digits as its factorization.

13131531713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835, while the sum is 29.

The spelling of 13131531713 in words is "thirteen billion, one hundred thirty-one million, five hundred thirty-one thousand, seven hundred thirteen".