13387485131 has 2 divisors, whose sum is σ = 13387485132. Its totient is φ = 13387485130.

The previous prime is 13387485121. The next prime is 13387485149. The reversal of 13387485131 is 13158478331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13387485131 is a prime.

It is a super-2 number, since 2×13387485131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13387485121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6693742565 + 6693742566.

It is an arithmetic number, because the mean of its divisors is an integer number (6693742566).

Almost surely, 2^13387485131 is an apocalyptic number.

13387485131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13387485131 is an equidigital number, since it uses as much as digits as its factorization.

13387485131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The spelling of 13387485131 in words is "thirteen billion, three hundred eighty-seven million, four hundred eighty-five thousand, one hundred thirty-one".