23320301221 has 4 divisors (see below), whose sum is σ = 26651772832. Its totient is φ = 19988829612.

The previous prime is 23320301203. The next prime is 23320301311. The reversal of 23320301221 is 12210302332.

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 23320301221 - 2⁹ = 23320300709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320301321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665735795 + ... + 1665735808.

It is an arithmetic number, because the mean of its divisors is an integer number (6662943208).

Almost surely, 2^23320301221 is an apocalyptic number.

It is an amenable number.

23320301221 is a deficient number, since it is larger than the sum of its proper divisors (3331471611).

23320301221 is an equidigital number, since it uses as much as digits as its factorization.

23320301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331471610.

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

Adding to 23320301221 its reverse (12210302332), we get a palindrome (35530603553).

The spelling of 23320301221 in words is "twenty-three billion, three hundred twenty million, three hundred one thousand, two hundred twenty-one".