21333103320 has 64 divisors (see below), whose sum is σ = 65729034720. Its totient is φ = 5535074304.

The previous prime is 21333103307. The next prime is 21333103331. The reversal of 21333103320 is 2330133312.

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 15 ways as a sum of consecutive naturals, for example, 2397937 + ... + 2406816.

Almost surely, 2^21333103320 is an apocalyptic number.

21333103320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333103320 is an abundant number, since it is smaller than the sum of its proper divisors (44395931400).

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

21333103320 is a wasteful number, since it uses less digits than its factorization.

21333103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804804 (or 4804800 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21333103320 its reverse (2330133312), we get a palindrome (23663236632).

The spelling of 21333103320 in words is "twenty-one billion, three hundred thirty-three million, one hundred three thousand, three hundred twenty".