315134505431513 has 4 divisors (see below), whose sum is σ = 315160808298468. Its totient is φ = 315108202564560.

The previous prime is 315134505431479. The next prime is 315134505431561.

315134505431513 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133034378606809 + 182100126824704 = 11534053^2 + 13494448^2 .

It is a cyclic number.

It is not a de Polignac number, because 315134505431513 - 2³² = 315130210464217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315134505931513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13151415506 + ... + 13151439467.

It is an arithmetic number, because the mean of its divisors is an integer number (78790202074617).

Almost surely, 2^{315134505431513} is an apocalyptic number.

It is an amenable number.

315134505431513 is a deficient number, since it is larger than the sum of its proper divisors (26302866955).

315134505431513 is a wasteful number, since it uses less digits than its factorization.

315134505431513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26302866954.

The product of its (nonzero) digits is 810000, while the sum is 44.

It can be divided in two parts, 31513450 and 5431513, that added together give a palindrome (36944963).

The spelling of 315134505431513 in words is "three hundred fifteen trillion, one hundred thirty-four billion, five hundred five million, four hundred thirty-one thousand, five hundred thirteen".