23221303321 has 4 divisors (see below), whose sum is σ = 24443477200. Its totient is φ = 21999129444.

The previous prime is 23221303271. The next prime is 23221303349. The reversal of 23221303321 is 12330312232.

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 23221303321 - 2⁹ = 23221302809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23221303292 and 23221303301.

It is not an unprimeable number, because it can be changed into a prime (23221303121) 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, 611086911 + ... + 611086948.

It is an arithmetic number, because the mean of its divisors is an integer number (6110869300).

Almost surely, 2^23221303321 is an apocalyptic number.

It is an amenable number.

23221303321 is a deficient number, since it is larger than the sum of its proper divisors (1222173879).

23221303321 is a wasteful number, since it uses less digits than its factorization.

23221303321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222173878.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23221303321 its reverse (12330312232), we get a palindrome (35551615553).

The spelling of 23221303321 in words is "twenty-three billion, two hundred twenty-one million, three hundred three thousand, three hundred twenty-one".