122713313 has 2 divisors, whose sum is σ = 122713314. Its totient is φ = 122713312.

The previous prime is 122713309. The next prime is 122713319. The reversal of 122713313 is 313317221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108326464 + 14386849 = 10408^2 + 3793^2 .

It is a cyclic number.

It is not a de Polignac number, because 122713313 - 2² = 122713309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122713319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61356656 + 61356657.

It is an arithmetic number, because the mean of its divisors is an integer number (61356657).

Almost surely, 2^122713313 is an apocalyptic number.

It is an amenable number.

122713313 is a deficient number, since it is larger than the sum of its proper divisors (1).

122713313 is an equidigital number, since it uses as much as digits as its factorization.

122713313 is an odious number, because the sum of its binary digits is odd.

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

The square root of 122713313 is about 11077.6041182198. The cubic root of 122713313 is about 496.9323009375.

The spelling of 122713313 in words is "one hundred twenty-two million, seven hundred thirteen thousand, three hundred thirteen".