23104221321 has 4 divisors (see below), whose sum is σ = 30805628432. Its totient is φ = 15402814212.

The previous prime is 23104221317. The next prime is 23104221337. The reversal of 23104221321 is 12312240132.

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 not a de Polignac number, because 23104221321 - 2² = 23104221317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23104221391) 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, 3850703551 + ... + 3850703556.

It is an arithmetic number, because the mean of its divisors is an integer number (7701407108).

Almost surely, 2^23104221321 is an apocalyptic number.

It is an amenable number.

23104221321 is a deficient number, since it is larger than the sum of its proper divisors (7701407111).

23104221321 is an equidigital number, since it uses as much as digits as its factorization.

23104221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7701407110.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23104221321 its reverse (12312240132), we get a palindrome (35416461453).

The spelling of 23104221321 in words is "twenty-three billion, one hundred four million, two hundred twenty-one thousand, three hundred twenty-one".