318014321 has 2 divisors, whose sum is σ = 318014322. Its totient is φ = 318014320.

The previous prime is 318014303. The next prime is 318014329. The reversal of 318014321 is 123410813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204804721 + 113209600 = 14311^2 + 10640^2 .

It is a cyclic number.

It is not a de Polignac number, because 318014321 - 2¹⁸ = 317752177 is a prime.

It is a super-2 number, since 2×318014321² = 202266216722182082, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (318014329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159007160 + 159007161.

It is an arithmetic number, because the mean of its divisors is an integer number (159007161).

Almost surely, 2^318014321 is an apocalyptic number.

It is an amenable number.

318014321 is a deficient number, since it is larger than the sum of its proper divisors (1).

318014321 is an equidigital number, since it uses as much as digits as its factorization.

318014321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 318014321 is about 17832.9560365072. The cubic root of 318014321 is about 682.5726658084.

The spelling of 318014321 in words is "three hundred eighteen million, fourteen thousand, three hundred twenty-one".