20013232131112 has 32 divisors (see below), whose sum is σ = 41059830880800. Its totient is φ = 9069440529600.

The previous prime is 20013232131049. The next prime is 20013232131131. The reversal of 20013232131112 is 21113123231002.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 343510287 + ... + 343568542.

It is an arithmetic number, because the mean of its divisors is an integer number (1283119715025).

Almost surely, 2^{20013232131112} is an apocalyptic number.

20013232131112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20013232131112 is an abundant number, since it is smaller than the sum of its proper divisors (21046598749688).

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

20013232131112 is a wasteful number, since it uses less digits than its factorization.

20013232131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687079177 (or 687079173 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20013232131112 its reverse (21113123231002), we get a palindrome (41126355362114).

The spelling of 20013232131112 in words is "twenty trillion, thirteen billion, two hundred thirty-two million, one hundred thirty-one thousand, one hundred twelve".