23220320321 has 8 divisors (see below), whose sum is σ = 26148396288. Its totient is φ = 20428434000.

The previous prime is 23220320311. The next prime is 23220320323. The reversal of 23220320321 is 12302302232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23220320321 - 2²⁶ = 23153211457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23220320293 and 23220320302.

It is not an unprimeable number, because it can be changed into a prime (23220320323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34047050 + ... + 34047731.

It is an arithmetic number, because the mean of its divisors is an integer number (3268549536).

Almost surely, 2^23220320321 is an apocalyptic number.

It is an amenable number.

23220320321 is a deficient number, since it is larger than the sum of its proper divisors (2928075967).

23220320321 is a wasteful number, since it uses less digits than its factorization.

23220320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68094823.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23220320321 its reverse (12302302232), we get a palindrome (35522622553).

The spelling of 23220320321 in words is "twenty-three billion, two hundred twenty million, three hundred twenty thousand, three hundred twenty-one".