23303310321 has 4 divisors (see below), whose sum is σ = 31071080432. Its totient is φ = 15535540212.

The previous prime is 23303310271. The next prime is 23303310389. The reversal of 23303310321 is 12301330332.

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 23303310321 - 2¹⁸ = 23303048177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23303310521) 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, 3883885051 + ... + 3883885056.

It is an arithmetic number, because the mean of its divisors is an integer number (7767770108).

Almost surely, 2^23303310321 is an apocalyptic number.

It is an amenable number.

23303310321 is a deficient number, since it is larger than the sum of its proper divisors (7767770111).

23303310321 is an equidigital number, since it uses as much as digits as its factorization.

23303310321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7767770110.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 23303310321 its reverse (12301330332), we get a palindrome (35604640653).

The spelling of 23303310321 in words is "twenty-three billion, three hundred three million, three hundred ten thousand, three hundred twenty-one".