123123333013220 has 24 divisors (see below), whose sum is σ = 264060254634624. Its totient is φ = 48201475051616.

The previous prime is 123123333013159. The next prime is 123123333013229. The reversal of 123123333013220 is 22310333321321.

It is not an unprimeable number, because it can be changed into a prime (123123333013229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65491133642 + ... + 65491135521.

It is an arithmetic number, because the mean of its divisors is an integer number (11002510609776).

Almost surely, 2^{123123333013220} is an apocalyptic number.

123123333013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123123333013220 is an abundant number, since it is smaller than the sum of its proper divisors (140936921621404).

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

123123333013220 is a wasteful number, since it uses less digits than its factorization.

123123333013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130982269219 (or 130982269217 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 123123333013220 its reverse (22310333321321), we get a palindrome (145433666334541).

The spelling of 123123333013220 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, three hundred thirty-three million, thirteen thousand, two hundred twenty".