315006231661013 has 2 divisors, whose sum is σ = 315006231661014. Its totient is φ = 315006231661012.

The previous prime is 315006231660997. The next prime is 315006231661063. The reversal of 315006231661013 is 310166132600513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284348560319044 + 30657671341969 = 16862638^2 + 5536937^2 .

It is a cyclic number.

It is not a de Polignac number, because 315006231661013 - 2⁴ = 315006231660997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315006231661063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157503115830506 + 157503115830507.

It is an arithmetic number, because the mean of its divisors is an integer number (157503115830507).

Almost surely, 2^{315006231661013} is an apocalyptic number.

It is an amenable number.

315006231661013 is a deficient number, since it is larger than the sum of its proper divisors (1).

315006231661013 is an equidigital number, since it uses as much as digits as its factorization.

315006231661013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 315006231661013 in words is "three hundred fifteen trillion, six billion, two hundred thirty-one million, six hundred sixty-one thousand, thirteen".