315032532131 has 2 divisors, whose sum is σ = 315032532132. Its totient is φ = 315032532130.

The previous prime is 315032532071. The next prime is 315032532161. The reversal of 315032532131 is 131235230513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315032532131 is a prime.

It is a super-2 number, since 2×315032532131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315032532094 and 315032532103.

It is not a weakly prime, because it can be changed into another prime (315032532161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157516266065 + 157516266066.

It is an arithmetic number, because the mean of its divisors is an integer number (157516266066).

Almost surely, 2^315032532131 is an apocalyptic number.

315032532131 is a deficient number, since it is larger than the sum of its proper divisors (1).

315032532131 is an equidigital number, since it uses as much as digits as its factorization.

315032532131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 315032532131 its reverse (131235230513), we get a palindrome (446267762644).

The spelling of 315032532131 in words is "three hundred fifteen billion, thirty-two million, five hundred thirty-two thousand, one hundred thirty-one".