21301232320000 has 200 divisors, whose sum is σ = 53197436521152. Its totient is φ = 8518348800000.

The previous prime is 21301232319971. The next prime is 21301232320007. The reversal of 21301232320000 is 2323210312.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×21301232320000² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21301232320000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301232320007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2073914865 + ... + 2073925135.

Almost surely, 2^{21301232320000} is an apocalyptic number.

21301232320000 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 21301232320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26598718260576).

21301232320000 is an abundant number, since it is smaller than the sum of its proper divisors (31896204201152).

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

21301232320000 is an frugal number, since it uses more digits than its factorization.

21301232320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16790 (or 16759 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21301232320000 its reverse (2323210312), we get a palindrome (21303555530312).

The spelling of 21301232320000 in words is "twenty-one trillion, three hundred one billion, two hundred thirty-two million, three hundred twenty thousand".