21303021330032 has 40 divisors (see below), whose sum is σ = 44458700815200. Its totient is φ = 9830144712960.

The previous prime is 21303021329899. The next prime is 21303021330037. The reversal of 21303021330032 is 23003312030312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303021330037) 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, 9499907 + ... + 11526242.

It is an arithmetic number, because the mean of its divisors is an integer number (1111467520380).

Almost surely, 2^{21303021330032} is an apocalyptic number.

It is an amenable number.

21303021330032 is an abundant number, since it is smaller than the sum of its proper divisors (23155679485168).

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

21303021330032 is a wasteful number, since it uses less digits than its factorization.

21303021330032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031041 (or 21031035 counting only the distinct ones).

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

Adding to 21303021330032 its reverse (23003312030312), we get a palindrome (44306333360344).

The spelling of 21303021330032 in words is "twenty-one trillion, three hundred three billion, twenty-one million, three hundred thirty thousand, thirty-two".