21000023033112 has 64 divisors (see below), whose sum is σ = 61764773637600. Its totient is φ = 6588242519040.

The previous prime is 21000023033083. The next prime is 21000023033179. The reversal of 21000023033112 is 21133032000012.

21000023033112 is a `hidden beast` number, since 2 + 100 + 0 + 0 + 230 + 331 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2859476589 + ... + 2859483932.

Almost surely, 2^{21000023033112} is an apocalyptic number.

It is an amenable number.

21000023033112 is an abundant number, since it is smaller than the sum of its proper divisors (40764750604488).

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

21000023033112 is a wasteful number, since it uses less digits than its factorization.

21000023033112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718960553 (or 5718960543 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21000023033112 its reverse (21133032000012), we get a palindrome (42133055033124).

The spelling of 21000023033112 in words is "twenty-one trillion, twenty-three million, thirty-three thousand, one hundred twelve".