21322003024 has 80 divisors (see below), whose sum is σ = 51341499648. Its totient is φ = 8367998976.

The previous prime is 21322002967. The next prime is 21322003039. The reversal of 21322003024 is 42030022312.

It is a junction number, because it is equal to n+sod(n) for n = 21322002992 and 21322003010.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 80884 + ... + 221779.

Almost surely, 2^21322003024 is an apocalyptic number.

It is an amenable number.

21322003024 is an abundant number, since it is smaller than the sum of its proper divisors (30019496624).

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

21322003024 is a wasteful number, since it uses less digits than its factorization.

21322003024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302732 (or 302726 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21322003024 its reverse (42030022312), we get a palindrome (63352025336).

The spelling of 21322003024 in words is "twenty-one billion, three hundred twenty-two million, three thousand, twenty-four".