316130505722 has 4 divisors (see below), whose sum is σ = 474195758586. Its totient is φ = 158065252860.

The previous prime is 316130505701. The next prime is 316130505737. The reversal of 316130505722 is 227505031613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227505031613 = 46219 ⋅4922327.

It can be written as a sum of positive squares in only one way, i.e., 287552265121 + 28578240601 = 536239^2 + 169051^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79032626429 + ... + 79032626432.

Almost surely, 2^316130505722 is an apocalyptic number.

316130505722 is a deficient number, since it is larger than the sum of its proper divisors (158065252864).

316130505722 is a wasteful number, since it uses less digits than its factorization.

316130505722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158065252863.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 316130505722 in words is "three hundred sixteen billion, one hundred thirty million, five hundred five thousand, seven hundred twenty-two".