21112102032 has 40 divisors (see below), whose sum is σ = 62330968896. Its totient is φ = 6032029056.

The previous prime is 21112102027. The next prime is 21112102147. The reversal of 21112102032 is 23020121112.

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, 31416483 + ... + 31417154.

Almost surely, 2^21112102032 is an apocalyptic number.

It is an amenable number.

21112102032 is an abundant number, since it is smaller than the sum of its proper divisors (41218866864).

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

21112102032 is a wasteful number, since it uses less digits than its factorization.

21112102032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62833655 (or 62833649 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21112102032 its reverse (23020121112), we get a palindrome (44132223144).

The spelling of 21112102032 in words is "twenty-one billion, one hundred twelve million, one hundred two thousand, thirty-two".