21021300320132 has 24 divisors (see below), whose sum is σ = 42618526680576. Its totient is φ = 8885715985728.

The previous prime is 21021300320113. The next prime is 21021300320179. The reversal of 21021300320132 is 23102300312012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5142194708 + ... + 5142198795.

It is an arithmetic number, because the mean of its divisors is an integer number (1775771945024).

Almost surely, 2^{21021300320132} is an apocalyptic number.

It is an amenable number.

21021300320132 is an abundant number, since it is smaller than the sum of its proper divisors (21597226360444).

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

21021300320132 is a wasteful number, since it uses less digits than its factorization.

21021300320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284393587 (or 10284393585 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21021300320132 its reverse (23102300312012), we get a palindrome (44123600632144).

The spelling of 21021300320132 in words is "twenty-one trillion, twenty-one billion, three hundred million, three hundred twenty thousand, one hundred thirty-two".