21330300304 has 20 divisors (see below), whose sum is σ = 41360321520. Its totient is φ = 10656668960.

The previous prime is 21330300301. The next prime is 21330300323. The reversal of 21330300304 is 40300303312.

It is a super-2 number, since 2×21330300304² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21330300301) by changing a digit.

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, 509302 + ... + 549589.

It is an arithmetic number, because the mean of its divisors is an integer number (2068016076).

Almost surely, 2^21330300304 is an apocalyptic number.

It is an amenable number.

21330300304 is a deficient number, since it is larger than the sum of its proper divisors (20030021216).

21330300304 is a wasteful number, since it uses less digits than its factorization.

21330300304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060158 (or 1060152 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 21330300304 its reverse (40300303312), we get a palindrome (61630603616).

The spelling of 21330300304 in words is "twenty-one billion, three hundred thirty million, three hundred thousand, three hundred four".