21203022304 has 24 divisors (see below), whose sum is σ = 41814600408. Its totient is φ = 10583441280.

The previous prime is 21203022299. The next prime is 21203022341. The reversal of 21203022304 is 40322030212.

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 3 ways as a sum of consecutive naturals, for example, 545607 + ... + 583174.

It is an arithmetic number, because the mean of its divisors is an integer number (1742275017).

Almost surely, 2^21203022304 is an apocalyptic number.

It is an amenable number.

21203022304 is a deficient number, since it is larger than the sum of its proper divisors (20611578104).

21203022304 is a wasteful number, since it uses less digits than its factorization.

21203022304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129378 (or 1129370 counting only the distinct ones).

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

Adding to 21203022304 its reverse (40322030212), we get a palindrome (61525052516).

The spelling of 21203022304 in words is "twenty-one billion, two hundred three million, twenty-two thousand, three hundred four".