21320202322300 has 144 divisors (see below), whose sum is σ = 55663995331840. Its totient is φ = 6924181501440.

The previous prime is 21320202322283. The next prime is 21320202322327. The reversal of 21320202322300 is 322320202312.

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, 109401547 + ... + 109596253.

Almost surely, 2^{21320202322300} is an apocalyptic number.

21320202322300 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 21320202322300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27831997665920).

21320202322300 is an abundant number, since it is smaller than the sum of its proper divisors (34343793009540).

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

21320202322300 is a wasteful number, since it uses less digits than its factorization.

21320202322300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202980 (or 202973 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21320202322300 its reverse (322320202312), we get a palindrome (21642522524612).

The spelling of 21320202322300 in words is "twenty-one trillion, three hundred twenty billion, two hundred two million, three hundred twenty-two thousand, three hundred".