123231230112173 has 2 divisors, whose sum is σ = 123231230112174. Its totient is φ = 123231230112172.

The previous prime is 123231230112103. The next prime is 123231230112197. The reversal of 123231230112173 is 371211032132321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111858269758249 + 11372960353924 = 10576307^2 + 3372382^2 .

It is a cyclic number.

It is not a de Polignac number, because 123231230112173 - 2¹⁰ = 123231230111149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231230112103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615615056086 + 61615615056087.

It is an arithmetic number, because the mean of its divisors is an integer number (61615615056087).

Almost surely, 2^{123231230112173} is an apocalyptic number.

It is an amenable number.

123231230112173 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231230112173 is an equidigital number, since it uses as much as digits as its factorization.

123231230112173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 123231230112173 its reverse (371211032132321), we get a palindrome (494442262244494).

The spelling of 123231230112173 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, two hundred thirty million, one hundred twelve thousand, one hundred seventy-three".