12331312120020 has 24 divisors (see below), whose sum is σ = 34527673936224. Its totient is φ = 3288349898656.

The previous prime is 12331312119901. The next prime is 12331312120051. The reversal of 12331312120020 is 2002121313321.

12331312120020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12331312120020² (a number of 27 digits) contains 22 as substring.

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, 102760934274 + ... + 102760934393.

It is an arithmetic number, because the mean of its divisors is an integer number (1438653080676).

Almost surely, 2^{12331312120020} is an apocalyptic number.

12331312120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331312120020 is an abundant number, since it is smaller than the sum of its proper divisors (22196361816204).

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

12331312120020 is a wasteful number, since it uses less digits than its factorization.

12331312120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205521868679 (or 205521868677 counting only the distinct ones).

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

Adding to 12331312120020 its reverse (2002121313321), we get a palindrome (14333433433341).

The spelling of 12331312120020 in words is "twelve trillion, three hundred thirty-one billion, three hundred twelve million, one hundred twenty thousand, twenty".