123420023203239 has 12 divisors (see below), whose sum is σ = 203740990684816. Its totient is φ = 70525727544672.

The previous prime is 123420023203229. The next prime is 123420023203241. The reversal of 123420023203239 is 932302320024321.

123420023203239 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 2 + 0 + 0 + 2 + 320 + 323 + 9 = 666.

It is not a de Polignac number, because 123420023203239 - 2¹¹ = 123420023201191 is a prime.

It is a super-2 number, since 2×123420023203239² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123420023203229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 979523993614 + ... + 979523993739.

Almost surely, 2^{123420023203239} is an apocalyptic number.

123420023203239 is a deficient number, since it is larger than the sum of its proper divisors (80320967481577).

123420023203239 is a wasteful number, since it uses less digits than its factorization.

123420023203239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959047987366 (or 1959047987363 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 123420023203239 in words is "one hundred twenty-three trillion, four hundred twenty billion, twenty-three million, two hundred three thousand, two hundred thirty-nine".