315718255436131 has 2 divisors, whose sum is σ = 315718255436132. Its totient is φ = 315718255436130.

The previous prime is 315718255436119. The next prime is 315718255436159. The reversal of 315718255436131 is 131634552817513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315718255436131 - 2²¹ = 315718253338979 is a prime.

It is a super-2 number, since 2×315718255436131² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315718255436431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157859127718065 + 157859127718066.

It is an arithmetic number, because the mean of its divisors is an integer number (157859127718066).

Almost surely, 2^{315718255436131} is an apocalyptic number.

315718255436131 is a deficient number, since it is larger than the sum of its proper divisors (1).

315718255436131 is an equidigital number, since it uses as much as digits as its factorization.

315718255436131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072000, while the sum is 55.

The spelling of 315718255436131 in words is "three hundred fifteen trillion, seven hundred eighteen billion, two hundred fifty-five million, four hundred thirty-six thousand, one hundred thirty-one".