313430317 has 2 divisors, whose sum is σ = 313430318. Its totient is φ = 313430316.

The previous prime is 313430303. The next prime is 313430323. The reversal of 313430317 is 713034313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272547081 + 40883236 = 16509^2 + 6394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313430317 is a prime.

It is a super-2 number, since 2×313430317² = 196477127229440978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313430291 and 313430300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313430417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156715158 + 156715159.

It is an arithmetic number, because the mean of its divisors is an integer number (156715159).

Almost surely, 2^313430317 is an apocalyptic number.

It is an amenable number.

313430317 is a deficient number, since it is larger than the sum of its proper divisors (1).

313430317 is an equidigital number, since it uses as much as digits as its factorization.

313430317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 313430317 is about 17703.9633133375. The cubic root of 313430317 is about 679.2771420339.

The spelling of 313430317 in words is "three hundred thirteen million, four hundred thirty thousand, three hundred seventeen".