313323239 has 2 divisors, whose sum is σ = 313323240. Its totient is φ = 313323238.

The previous prime is 313323193. The next prime is 313323253. The reversal of 313323239 is 932323313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313323239 - 2¹² = 313319143 is a prime.

It is a super-2 number, since 2×313323239² = 196342904194902242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313323259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156661619 + 156661620.

It is an arithmetic number, because the mean of its divisors is an integer number (156661620).

Almost surely, 2^313323239 is an apocalyptic number.

313323239 is a deficient number, since it is larger than the sum of its proper divisors (1).

313323239 is an equidigital number, since it uses as much as digits as its factorization.

313323239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 29.

The square root of 313323239 is about 17700.9389298986. The cubic root of 313323239 is about 679.1997788282.

The spelling of 313323239 in words is "three hundred thirteen million, three hundred twenty-three thousand, two hundred thirty-nine".