21333132032 has 36 divisors (see below), whose sum is σ = 43733840976. Its totient is φ = 10378275840.

The previous prime is 21333132011. The next prime is 21333132049. The reversal of 21333132032 is 23023133312.

It is a junction number, because it is equal to n+sod(n) for n = 21333131989 and 21333132007.

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, 1116644 + ... + 1135587.

It is an arithmetic number, because the mean of its divisors is an integer number (1214828916).

Almost surely, 2^21333132032 is an apocalyptic number.

It is an amenable number.

21333132032 is an abundant number, since it is smaller than the sum of its proper divisors (22400708944).

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

21333132032 is an equidigital number, since it uses as much as digits as its factorization.

21333132032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252284 (or 2252270 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21333132032 its reverse (23023133312), we get a palindrome (44356265344).

The spelling of 21333132032 in words is "twenty-one billion, three hundred thirty-three million, one hundred thirty-two thousand, thirty-two".