21201034304 has 28 divisors (see below), whose sum is σ = 42077376348. Its totient is φ = 10598860800.

The previous prime is 21201034289. The next prime is 21201034333. The reversal of 21201034304 is 40343010212.

It can be written as a sum of positive squares in 2 ways, for example, as 11760968704 + 9440065600 = 108448^2 + 97160^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456644 + ... + 500924.

It is an arithmetic number, because the mean of its divisors is an integer number (1502763441).

Almost surely, 2^21201034304 is an apocalyptic number.

It is an amenable number.

21201034304 is a deficient number, since it is larger than the sum of its proper divisors (20876342044).

21201034304 is an equidigital number, since it uses as much as digits as its factorization.

21201034304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51774 (or 51764 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21201034304 its reverse (40343010212), we get a palindrome (61544044516).

The spelling of 21201034304 in words is "twenty-one billion, two hundred one million, thirty-four thousand, three hundred four".