315214520113 has 2 divisors, whose sum is σ = 315214520114. Its totient is φ = 315214520112.

The previous prime is 315214520029. The next prime is 315214520161. The reversal of 315214520113 is 311025412513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241112425024 + 74102095089 = 491032^2 + 272217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315214520113 is a prime.

It is not a weakly prime, because it can be changed into another prime (315214520513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157607260056 + 157607260057.

It is an arithmetic number, because the mean of its divisors is an integer number (157607260057).

Almost surely, 2^315214520113 is an apocalyptic number.

It is an amenable number.

315214520113 is a deficient number, since it is larger than the sum of its proper divisors (1).

315214520113 is an equidigital number, since it uses as much as digits as its factorization.

315214520113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 315214520113 its reverse (311025412513), we get a palindrome (626239932626).

The spelling of 315214520113 in words is "three hundred fifteen billion, two hundred fourteen million, five hundred twenty thousand, one hundred thirteen".