310320313 has 2 divisors, whose sum is σ = 310320314. Its totient is φ = 310320312.

The previous prime is 310320289. The next prime is 310320319. The reversal of 310320313 is 313023013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244515769 + 65804544 = 15637^2 + 8112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310320313 is a prime.

It is not a weakly prime, because it can be changed into another prime (310320319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155160156 + 155160157.

It is an arithmetic number, because the mean of its divisors is an integer number (155160157).

Almost surely, 2^310320313 is an apocalyptic number.

It is an amenable number.

310320313 is a deficient number, since it is larger than the sum of its proper divisors (1).

310320313 is an equidigital number, since it uses as much as digits as its factorization.

310320313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 310320313 is about 17615.9107911002. The cubic root of 310320313 is about 677.0229667107.

Adding to 310320313 its reverse (313023013), we get a palindrome (623343326).

The spelling of 310320313 in words is "three hundred ten million, three hundred twenty thousand, three hundred thirteen".