23320311302221 has 2 divisors, whose sum is σ = 23320311302222. Its totient is φ = 23320311302220.

The previous prime is 23320311302207. The next prime is 23320311302417. The reversal of 23320311302221 is 12220311302332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13990255526025 + 9330055776196 = 3740355^2 + 3054514^2 .

It is a cyclic number.

It is not a de Polignac number, because 23320311302221 - 2²¹ = 23320309205069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320311302021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660155651110 + 11660155651111.

It is an arithmetic number, because the mean of its divisors is an integer number (11660155651111).

Almost surely, 2^{23320311302221} is an apocalyptic number.

It is an amenable number.

23320311302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320311302221 is an equidigital number, since it uses as much as digits as its factorization.

23320311302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 23320311302221 its reverse (12220311302332), we get a palindrome (35540622604553).

The spelling of 23320311302221 in words is "twenty-three trillion, three hundred twenty billion, three hundred eleven million, three hundred two thousand, two hundred twenty-one".