21322308004 has 48 divisors (see below), whose sum is σ = 40561190208. Its totient is φ = 9768342528.

The previous prime is 21322307999. The next prime is 21322308011. The reversal of 21322308004 is 40080322312.

It is a self number, because there is not a number n which added to its sum of digits gives 21322308004.

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, 885792 + ... + 909544.

It is an arithmetic number, because the mean of its divisors is an integer number (845024796).

Almost surely, 2^21322308004 is an apocalyptic number.

It is an amenable number.

21322308004 is a deficient number, since it is larger than the sum of its proper divisors (19238882204).

21322308004 is a wasteful number, since it uses less digits than its factorization.

21322308004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24124 (or 24122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 21322308004 in words is "twenty-one billion, three hundred twenty-two million, three hundred eight thousand, four".