7321012313 has 2 divisors, whose sum is σ = 7321012314. Its totient is φ = 7321012312.

The previous prime is 7321012301. The next prime is 7321012319. The reversal of 7321012313 is 3132101237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7176122944 + 144889369 = 84712^2 + 12037^2 .

It is an emirp because it is prime and its reverse (3132101237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7321012313 - 2⁸ = 7321012057 is a prime.

It is not a weakly prime, because it can be changed into another prime (7321012319) 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, 3660506156 + 3660506157.

It is an arithmetic number, because the mean of its divisors is an integer number (3660506157).

Almost surely, 2^7321012313 is an apocalyptic number.

It is an amenable number.

7321012313 is a deficient number, since it is larger than the sum of its proper divisors (1).

7321012313 is an equidigital number, since it uses as much as digits as its factorization.

7321012313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 7321012313 is about 85562.9143554613. The cubic root of 7321012313 is about 1941.7368787233.

The spelling of 7321012313 in words is "seven billion, three hundred twenty-one million, twelve thousand, three hundred thirteen".