21333013300 has 36 divisors (see below), whose sum is σ = 47277599040. Its totient is φ = 8351645920.

The previous prime is 21333013283. The next prime is 21333013319. The reversal of 21333013300 is 331033312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2264770 + ... + 2274169.

It is an arithmetic number, because the mean of its divisors is an integer number (1313266640).

Almost surely, 2^21333013300 is an apocalyptic number.

21333013300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333013300 is an abundant number, since it is smaller than the sum of its proper divisors (25944585740).

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

21333013300 is a wasteful number, since it uses less digits than its factorization.

21333013300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539000 (or 4538993 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 21333013300 its reverse (331033312), we get a palindrome (21664046612).

The spelling of 21333013300 in words is "twenty-one billion, three hundred thirty-three million, thirteen thousand, three hundred".