21235832000 has 112 divisors (see below), whose sum is σ = 53257825920. Its totient is φ = 8386560000.

The previous prime is 21235831957. The next prime is 21235832041. The reversal of 21235832000 is 23853212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615200 + ... + 648800.

Almost surely, 2^21235832000 is an apocalyptic number.

21235832000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21235832000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26628912960).

21235832000 is an abundant number, since it is smaller than the sum of its proper divisors (32021993920).

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

21235832000 is an equidigital number, since it uses as much as digits as its factorization.

21235832000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33707 (or 33687 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 21235832000 in words is "twenty-one billion, two hundred thirty-five million, eight hundred thirty-two thousand".