21320022330300 has 144 divisors (see below), whose sum is σ = 62389062781920. Its totient is φ = 5620555100160.

The previous prime is 21320022330263. The next prime is 21320022330323. The reversal of 21320022330300 is 303322002312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174904174 + ... + 175026026.

It is an arithmetic number, because the mean of its divisors is an integer number (433257380430).

Almost surely, 2^{21320022330300} is an apocalyptic number.

21320022330300 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 21320022330300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31194531390960).

21320022330300 is an abundant number, since it is smaller than the sum of its proper divisors (41069040451620).

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

21320022330300 is a wasteful number, since it uses less digits than its factorization.

21320022330300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128512 (or 128505 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21320022330300 its reverse (303322002312), we get a palindrome (21623344332612).

The spelling of 21320022330300 in words is "twenty-one trillion, three hundred twenty billion, twenty-two million, three hundred thirty thousand, three hundred".