316318531273 has 4 divisors (see below), whose sum is σ = 321504081028. Its totient is φ = 311132981520.

The previous prime is 316318531271. The next prime is 316318531297. The reversal of 316318531273 is 372135813613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 372135813613 = 10289 ⋅36168317.

It can be written as a sum of positive squares in 2 ways, for example, as 13695318729 + 302623212544 = 117027^2 + 550112^2 .

It is a cyclic number.

It is not a de Polignac number, because 316318531273 - 2¹ = 316318531271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316318531271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2592774786 + ... + 2592774907.

It is an arithmetic number, because the mean of its divisors is an integer number (80376020257).

Almost surely, 2^316318531273 is an apocalyptic number.

It is an amenable number.

316318531273 is a deficient number, since it is larger than the sum of its proper divisors (5185549755).

316318531273 is an equidigital number, since it uses as much as digits as its factorization.

316318531273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185549754.

The product of its digits is 272160, while the sum is 43.

The spelling of 316318531273 in words is "three hundred sixteen billion, three hundred eighteen million, five hundred thirty-one thousand, two hundred seventy-three".