20333000021 has 8 divisors (see below), whose sum is σ = 20692769760. Its totient is φ = 19973735152.

The previous prime is 20333000003. The next prime is 20333000027. The reversal of 20333000021 is 12000033302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20333000021 - 2¹⁰ = 20332998997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333000027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44495 + ... + 206508.

It is an arithmetic number, because the mean of its divisors is an integer number (2586596220).

Almost surely, 2^20333000021 is an apocalyptic number.

It is an amenable number.

20333000021 is a deficient number, since it is larger than the sum of its proper divisors (359769739).

20333000021 is a wasteful number, since it uses less digits than its factorization.

20333000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252435.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20333000021 its reverse (12000033302), we get a palindrome (32333033323).

The spelling of 20333000021 in words is "twenty billion, three hundred thirty-three million, twenty-one", and thus it is an aban number.