21004324112 has 20 divisors (see below), whose sum is σ = 41006537616. Its totient is φ = 10421991840.

The previous prime is 21004324093. The next prime is 21004324127. The reversal of 21004324112 is 21142340012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5008478 + ... + 5012669.

Almost surely, 2^21004324112 is an apocalyptic number.

It is an amenable number.

21004324112 is a deficient number, since it is larger than the sum of its proper divisors (20002213504).

21004324112 is a wasteful number, since it uses less digits than its factorization.

21004324112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10021286 (or 10021280 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21004324112 its reverse (21142340012), we get a palindrome (42146664124).

The spelling of 21004324112 in words is "twenty-one billion, four million, three hundred twenty-four thousand, one hundred twelve".