20123032310112 has 48 divisors (see below), whose sum is σ = 54051400751040. Its totient is φ = 6551684936832.

The previous prime is 20123032310081. The next prime is 20123032310137. The reversal of 20123032310112 is 21101323032102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×20123032310112² (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, 2437378662 + ... + 2437386917.

It is an arithmetic number, because the mean of its divisors is an integer number (1126070848980).

Almost surely, 2^{20123032310112} is an apocalyptic number.

It is an amenable number.

20123032310112 is an abundant number, since it is smaller than the sum of its proper divisors (33928368440928).

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

20123032310112 is a wasteful number, since it uses less digits than its factorization.

20123032310112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4874765635 (or 4874765627 counting only the distinct ones).

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

Adding to 20123032310112 its reverse (21101323032102), we get a palindrome (41224355342214).

The spelling of 20123032310112 in words is "twenty trillion, one hundred twenty-three billion, thirty-two million, three hundred ten thousand, one hundred twelve".