122931013 has 2 divisors, whose sum is σ = 122931014. Its totient is φ = 122931012.

The previous prime is 122931001. The next prime is 122931019. The reversal of 122931013 is 310139221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120165444 + 2765569 = 10962^2 + 1663^2 .

It is a cyclic number.

It is not a de Polignac number, because 122931013 - 2⁵ = 122930981 is a prime.

It is a super-2 number, since 2×122931013² = 30224067914412338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122931019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61465506 + 61465507.

It is an arithmetic number, because the mean of its divisors is an integer number (61465507).

Almost surely, 2^122931013 is an apocalyptic number.

It is an amenable number.

122931013 is a deficient number, since it is larger than the sum of its proper divisors (1).

122931013 is an equidigital number, since it uses as much as digits as its factorization.

122931013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 122931013 is about 11087.4258960320. The cubic root of 122931013 is about 497.2259888528.

The spelling of 122931013 in words is "one hundred twenty-two million, nine hundred thirty-one thousand, thirteen".