123021120133020 has 48 divisors (see below), whose sum is σ = 349177754691360. Its totient is φ = 32356239814656.

The previous prime is 123021120133003. The next prime is 123021120133031. The reversal of 123021120133020 is 20331021120321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14043502485 + ... + 14043511244.

It is an arithmetic number, because the mean of its divisors is an integer number (7274536556070).

Almost surely, 2^{123021120133020} is an apocalyptic number.

123021120133020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123021120133020 is an abundant number, since it is smaller than the sum of its proper divisors (226156634558340).

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

123021120133020 is a wasteful number, since it uses less digits than its factorization.

123021120133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28087013814 (or 28087013812 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123021120133020 its reverse (20331021120321), we get a palindrome (143352141253341).

The spelling of 123021120133020 in words is "one hundred twenty-three trillion, twenty-one billion, one hundred twenty million, one hundred thirty-three thousand, twenty".