21323301132320 has 48 divisors (see below), whose sum is σ = 54955962468288. Its totient is φ = 7753927683840.

The previous prime is 21323301132311. The next prime is 21323301132323. The reversal of 21323301132320 is 2323110332312.

It is a self number, because there is not a number n which added to its sum of digits gives 21323301132320.

It is not an unprimeable number, because it can be changed into a prime (21323301132323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6057754244 + ... + 6057757763.

It is an arithmetic number, because the mean of its divisors is an integer number (1144915884756).

Almost surely, 2^{21323301132320} is an apocalyptic number.

21323301132320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21323301132320 is an abundant number, since it is smaller than the sum of its proper divisors (33632661335968).

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

21323301132320 is a wasteful number, since it uses less digits than its factorization.

21323301132320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12115512033 (or 12115512025 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 21323301132320 its reverse (2323110332312), we get a palindrome (23646411464632).

The spelling of 21323301132320 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred one million, one hundred thirty-two thousand, three hundred twenty".