21332113201320 has 64 divisors (see below), whose sum is σ = 63996751080000. Its totient is φ = 5688526944768.

The previous prime is 21332113201313. The next prime is 21332113201327. The reversal of 21332113201320 is 2310231123312.

It is an interprime number because it is at equal distance from previous prime (21332113201313) and next prime (21332113201327).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21332113201327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21805236 + ... + 22762524.

It is an arithmetic number, because the mean of its divisors is an integer number (999949235625).

Almost surely, 2^{21332113201320} is an apocalyptic number.

21332113201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21332113201320 is an abundant number, since it is smaller than the sum of its proper divisors (42664637878680).

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

21332113201320 is a wasteful number, since it uses less digits than its factorization.

21332113201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143002 (or 1142998 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21332113201320 its reverse (2310231123312), we get a palindrome (23642344324632).

The spelling of 21332113201320 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred thirteen million, two hundred one thousand, three hundred twenty".