123200002020020 has 24 divisors (see below), whose sum is σ = 258827849280000. Its totient is φ = 49259458896032.

The previous prime is 123200002019953. The next prime is 123200002020031. The reversal of 123200002020020 is 20020200002321.

It is a junction number, because it is equal to n+sod(n) for n = 123200002019977 and 123200002020004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283820320 + ... + 1283916279.

It is an arithmetic number, because the mean of its divisors is an integer number (10784493720000).

Almost surely, 2^{123200002020020} is an apocalyptic number.

123200002020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123200002020020 is an abundant number, since it is smaller than the sum of its proper divisors (135627847259980).

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

123200002020020 is a wasteful number, since it uses less digits than its factorization.

123200002020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567739007 (or 2567739005 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 123200002020020 its reverse (20020200002321), we get a palindrome (143220202022341).

The spelling of 123200002020020 in words is "one hundred twenty-three trillion, two hundred billion, two million, twenty thousand, twenty".