315303115131 has 20 divisors (see below), whose sum is σ = 471192870192. Its totient is φ = 210119732208.

The previous prime is 315303115129. The next prime is 315303115187. The reversal of 315303115131 is 131511303513.

It is a happy number.

315303115131 is a `hidden beast` number, since 3 + 1 + 530 + 3 + 115 + 13 + 1 = 666.

It is not a de Polignac number, because 315303115131 - 2¹ = 315303115129 is a prime.

It is a super-2 number, since 2×315303115131² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 315303115095 and 315303115104.

It is not an unprimeable number, because it can be changed into a prime (315303115031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 554055 + ... + 968288.

Almost surely, 2^315303115131 is an apocalyptic number.

315303115131 is a deficient number, since it is larger than the sum of its proper divisors (155889755061).

315303115131 is a wasteful number, since it uses less digits than its factorization.

315303115131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524912 (or 1524903 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 27.

Adding to 315303115131 its reverse (131511303513), we get a palindrome (446814418644).

The spelling of 315303115131 in words is "three hundred fifteen billion, three hundred three million, one hundred fifteen thousand, one hundred thirty-one".