123232131031020 has 192 divisors, whose sum is σ = 379996793164800. Its totient is φ = 29591570304000.

The previous prime is 123232131031013. The next prime is 123232131031039. The reversal of 123232131031020 is 20130131232321.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33009814 + ... + 36552866.

It is an arithmetic number, because the mean of its divisors is an integer number (1979149964400).

Almost surely, 2^{123232131031020} is an apocalyptic number.

123232131031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123232131031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189998396582400).

123232131031020 is an abundant number, since it is smaller than the sum of its proper divisors (256764662133780).

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

123232131031020 is a wasteful number, since it uses less digits than its factorization.

123232131031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543576 (or 3543574 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123232131031020 its reverse (20130131232321), we get a palindrome (143362262263341).

The spelling of 123232131031020 in words is "one hundred twenty-three trillion, two hundred thirty-two billion, one hundred thirty-one million, thirty-one thousand, twenty".