21323033203201 has 4 divisors (see below), whose sum is σ = 21327176016432. Its totient is φ = 21318890389972.

The previous prime is 21323033203183. The next prime is 21323033203207. The reversal of 21323033203201 is 10230233032312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21323033203201 - 2¹¹ = 21323033201153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21323033203207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071398895 + ... + 2071409188.

It is an arithmetic number, because the mean of its divisors is an integer number (5331794004108).

Almost surely, 2^{21323033203201} is an apocalyptic number.

It is an amenable number.

21323033203201 is a deficient number, since it is larger than the sum of its proper divisors (4142813231).

21323033203201 is an equidigital number, since it uses as much as digits as its factorization.

21323033203201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142813230.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21323033203201 its reverse (10230233032312), we get a palindrome (31553266235513).

The spelling of 21323033203201 in words is "twenty-one trillion, three hundred twenty-three billion, thirty-three million, two hundred three thousand, two hundred one".