21233100032020 has 12 divisors (see below), whose sum is σ = 44589510067284. Its totient is φ = 8493240012800.

The previous prime is 21233100031999. The next prime is 21233100032047. The reversal of 21233100032020 is 2023000133212.

It can be written as a sum of positive squares in 2 ways, for example, as 7655968031364 + 13577132000656 = 2766942^2 + 3684716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530827500781 + ... + 530827500820.

It is an arithmetic number, because the mean of its divisors is an integer number (3715792505607).

Almost surely, 2^{21233100032020} is an apocalyptic number.

21233100032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233100032020 is an abundant number, since it is smaller than the sum of its proper divisors (23356410035264).

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

21233100032020 is a wasteful number, since it uses less digits than its factorization.

21233100032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061655001610 (or 1061655001608 counting only the distinct ones).

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

Adding to 21233100032020 its reverse (2023000133212), we get a palindrome (23256100165232).

The spelling of 21233100032020 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred million, thirty-two thousand, twenty".