123102240404020 has 96 divisors (see below), whose sum is σ = 281560604967936. Its totient is φ = 45035416012800.

The previous prime is 123102240403973. The next prime is 123102240404057. The reversal of 123102240404020 is 20404042201321.

It is a super-3 number, since 3×123102240404020³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34034596 + ... + 37477435.

It is an arithmetic number, because the mean of its divisors is an integer number (2932922968416).

Almost surely, 2^{123102240404020} is an apocalyptic number.

123102240404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123102240404020 is an abundant number, since it is smaller than the sum of its proper divisors (158458364563916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123102240404020 is a wasteful number, since it uses less digits than its factorization.

123102240404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71512201 (or 71512199 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 123102240404020 its reverse (20404042201321), we get a palindrome (143506282605341).

The spelling of 123102240404020 in words is "one hundred twenty-three trillion, one hundred two billion, two hundred forty million, four hundred four thousand, twenty".