21102330304 has 84 divisors (see below), whose sum is σ = 46166346072. Its totient is φ = 9563107840.

The previous prime is 21102330257. The next prime is 21102330311. The reversal of 21102330304 is 40303320112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2683242 + ... + 2691094.

It is an arithmetic number, because the mean of its divisors is an integer number (549599358).

Almost surely, 2^21102330304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21102330304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23083173036).

21102330304 is an abundant number, since it is smaller than the sum of its proper divisors (25064015768).

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

21102330304 is a wasteful number, since it uses less digits than its factorization.

21102330304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8234 (or 8213 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21102330304 its reverse (40303320112), we get a palindrome (61405650416).

The spelling of 21102330304 in words is "twenty-one billion, one hundred two million, three hundred thirty thousand, three hundred four".