123023223021973 has 2 divisors, whose sum is σ = 123023223021974. Its totient is φ = 123023223021972.

The previous prime is 123023223021947. The next prime is 123023223021991. The reversal of 123023223021973 is 379120322320321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121561694352004 + 1461528669969 = 11025502^2 + 1208937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123023223021973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123023223721973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61511611510986 + 61511611510987.

It is an arithmetic number, because the mean of its divisors is an integer number (61511611510987).

Almost surely, 2^{123023223021973} is an apocalyptic number.

It is an amenable number.

123023223021973 is a deficient number, since it is larger than the sum of its proper divisors (1).

123023223021973 is an equidigital number, since it uses as much as digits as its factorization.

123023223021973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The spelling of 123023223021973 in words is "one hundred twenty-three trillion, twenty-three billion, two hundred twenty-three million, twenty-one thousand, nine hundred seventy-three".