20131233112992 has 24 divisors (see below), whose sum is σ = 52844486921856. Its totient is φ = 6710411037632.

The previous prime is 20131233112973. The next prime is 20131233113029. The reversal of 20131233112992 is 29921133213102.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20131233112992.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104850172368 + ... + 104850172559.

It is an arithmetic number, because the mean of its divisors is an integer number (2201853621744).

Almost surely, 2^{20131233112992} is an apocalyptic number.

It is an amenable number.

20131233112992 is an abundant number, since it is smaller than the sum of its proper divisors (32713253808864).

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

20131233112992 is a wasteful number, since it uses less digits than its factorization.

20131233112992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209700344940 (or 209700344932 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 20131233112992 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-three million, one hundred twelve thousand, nine hundred ninety-two".