21100112032 has 48 divisors (see below), whose sum is σ = 41794704000. Its totient is φ = 10485780480.

The previous prime is 21100112029. The next prime is 21100112057. The reversal of 21100112032 is 23021100112.

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, 3891019 + ... + 3896437.

It is an arithmetic number, because the mean of its divisors is an integer number (870723000).

Almost surely, 2^21100112032 is an apocalyptic number.

It is an amenable number.

21100112032 is a deficient number, since it is larger than the sum of its proper divisors (20694591968).

21100112032 is a wasteful number, since it uses less digits than its factorization.

21100112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149 (or 6141 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21100112032 its reverse (23021100112), we get a palindrome (44121212144).

The spelling of 21100112032 in words is "twenty-one billion, one hundred million, one hundred twelve thousand, thirty-two".