318311347 has 2 divisors, whose sum is σ = 318311348. Its totient is φ = 318311346.

The previous prime is 318311341. The next prime is 318311393. The reversal of 318311347 is 743113813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318311347 - 2³ = 318311339 is a prime.

It is a super-2 number, since 2×318311347² = 202644227257908818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (318311341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159155673 + 159155674.

It is an arithmetic number, because the mean of its divisors is an integer number (159155674).

Almost surely, 2^318311347 is an apocalyptic number.

318311347 is a deficient number, since it is larger than the sum of its proper divisors (1).

318311347 is an equidigital number, since it uses as much as digits as its factorization.

318311347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 318311347 is about 17841.2821007909. The cubic root of 318311347 is about 682.7851077516.

The spelling of 318311347 in words is "three hundred eighteen million, three hundred eleven thousand, three hundred forty-seven".