123131120133230 has 256 divisors, whose sum is σ = 261643737600000. Its totient is φ = 41237096371200.

The previous prime is 123131120133223. The next prime is 123131120133239. The reversal of 123131120133230 is 32331021131321.

It is a super-2 number, since 2×123131120133230² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123131120133230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131120133239) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 33651575141 + ... + 33651578799.

It is an arithmetic number, because the mean of its divisors is an integer number (1022045850000).

Almost surely, 2^{123131120133230} is an apocalyptic number.

123131120133230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123131120133230 is an abundant number, since it is smaller than the sum of its proper divisors (138512617466770).

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

123131120133230 is a wasteful number, since it uses less digits than its factorization.

123131120133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 123131120133230 its reverse (32331021131321), we get a palindrome (155462141264551).

The spelling of 123131120133230 in words is "one hundred twenty-three trillion, one hundred thirty-one billion, one hundred twenty million, one hundred thirty-three thousand, two hundred thirty".