123011203201320 has 128 divisors (see below), whose sum is σ = 428901047654400. Its totient is φ = 27640289715456.

The previous prime is 123011203201283. The next prime is 123011203201343. The reversal of 123011203201320 is 23102302110321.

It is a super-2 number, since 2×123011203201320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1240983564 + ... + 1241082683.

It is an arithmetic number, because the mean of its divisors is an integer number (3350789434800).

Almost surely, 2^{123011203201320} is an apocalyptic number.

123011203201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123011203201320 is an abundant number, since it is smaller than the sum of its proper divisors (305889844453080).

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

123011203201320 is a wasteful number, since it uses less digits than its factorization.

123011203201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482066327 (or 2482066323 counting only the distinct ones).

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

Adding to 123011203201320 its reverse (23102302110321), we get a palindrome (146113505311641).

The spelling of 123011203201320 in words is "one hundred twenty-three trillion, eleven billion, two hundred three million, two hundred one thousand, three hundred twenty".