21112023192 has 32 divisors (see below), whose sum is σ = 56840063280. Its totient is φ = 6496007040.

The previous prime is 21112023151. The next prime is 21112023193. The reversal of 21112023192 is 29132021112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112023193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33833059 + ... + 33833682.

Almost surely, 2^21112023192 is an apocalyptic number.

It is an amenable number.

21112023192 is an abundant number, since it is smaller than the sum of its proper divisors (35728040088).

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

21112023192 is a wasteful number, since it uses less digits than its factorization.

21112023192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67666763 (or 67666759 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 21112023192 in words is "twenty-one billion, one hundred twelve million, twenty-three thousand, one hundred ninety-two".