23022220321 has 2 divisors, whose sum is σ = 23022220322. Its totient is φ = 23022220320.

The previous prime is 23022220297. The next prime is 23022220357. The reversal of 23022220321 is 12302222032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19948737600 + 3073482721 = 141240^2 + 55439^2 .

It is a cyclic number.

It is not a de Polignac number, because 23022220321 - 2⁵ = 23022220289 is a prime.

It is not a weakly prime, because it can be changed into another prime (23022220391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11511110160 + 11511110161.

It is an arithmetic number, because the mean of its divisors is an integer number (11511110161).

Almost surely, 2^23022220321 is an apocalyptic number.

It is an amenable number.

23022220321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23022220321 is an equidigital number, since it uses as much as digits as its factorization.

23022220321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 23022220321 its reverse (12302222032), we get a palindrome (35324442353).

The spelling of 23022220321 in words is "twenty-three billion, twenty-two million, two hundred twenty thousand, three hundred twenty-one".