23312310221 has 2 divisors, whose sum is σ = 23312310222. Its totient is φ = 23312310220.

The previous prime is 23312310191. The next prime is 23312310251. The reversal of 23312310221 is 12201321332.

It is a balanced prime because it is at equal distance from previous prime (23312310191) and next prime (23312310251).

It can be written as a sum of positive squares in only one way, i.e., 20949378121 + 2362932100 = 144739^2 + 48610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23312310221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23312310193 and 23312310202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23312310251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656155110 + 11656155111.

It is an arithmetic number, because the mean of its divisors is an integer number (11656155111).

Almost surely, 2^23312310221 is an apocalyptic number.

It is an amenable number.

23312310221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23312310221 is an equidigital number, since it uses as much as digits as its factorization.

23312310221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23312310221 its reverse (12201321332), we get a palindrome (35513631553).

The spelling of 23312310221 in words is "twenty-three billion, three hundred twelve million, three hundred ten thousand, two hundred twenty-one".