123022611853021 has 2 divisors, whose sum is σ = 123022611853022. Its totient is φ = 123022611853020.

The previous prime is 123022611853013. The next prime is 123022611853049. The reversal of 123022611853021 is 120358116220321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116886067240996 + 6136544612025 = 10811386^2 + 2477205^2 .

It is a cyclic number.

It is not a de Polignac number, because 123022611853021 - 2³ = 123022611853013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123022611856021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511305926510 + 61511305926511.

It is an arithmetic number, because the mean of its divisors is an integer number (61511305926511).

Almost surely, 2^{123022611853021} is an apocalyptic number.

It is an amenable number.

123022611853021 is a deficient number, since it is larger than the sum of its proper divisors (1).

123022611853021 is an equidigital number, since it uses as much as digits as its factorization.

123022611853021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 123022611853021 in words is "one hundred twenty-three trillion, twenty-two billion, six hundred eleven million, eight hundred fifty-three thousand, twenty-one".