21303000430304 has 24 divisors (see below), whose sum is σ = 41941500529320. Its totient is φ = 10651190772096.

The previous prime is 21303000430267. The next prime is 21303000430351. The reversal of 21303000430304 is 40303400030312.

It is a self number, because there is not a number n which added to its sum of digits gives 21303000430304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8549399 + ... + 10756310.

It is an arithmetic number, because the mean of its divisors is an integer number (1747562522055).

Almost surely, 2^{21303000430304} is an apocalyptic number.

It is an amenable number.

21303000430304 is a deficient number, since it is larger than the sum of its proper divisors (20638500099016).

21303000430304 is a wasteful number, since it uses less digits than its factorization.

21303000430304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19340202 (or 19340194 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21303000430304 its reverse (40303400030312), we get a palindrome (61606400460616).

The spelling of 21303000430304 in words is "twenty-one trillion, three hundred three billion, four hundred thirty thousand, three hundred four".