23222020321 has 2 divisors, whose sum is σ = 23222020322. Its totient is φ = 23222020320.

The previous prime is 23222020319. The next prime is 23222020351. The reversal of 23222020321 is 12302022232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13294090000 + 9927930321 = 115300^2 + 99639^2 .

It is a cyclic number.

It is not a de Polignac number, because 23222020321 - 2¹ = 23222020319 is a prime.

Together with 23222020319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23222020301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611010160 + 11611010161.

It is an arithmetic number, because the mean of its divisors is an integer number (11611010161).

Almost surely, 2^23222020321 is an apocalyptic number.

It is an amenable number.

23222020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23222020321 is an equidigital number, since it uses as much as digits as its factorization.

23222020321 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 23222020321 its reverse (12302022232), we get a palindrome (35524042553).

The spelling of 23222020321 in words is "twenty-three billion, two hundred twenty-two million, twenty thousand, three hundred twenty-one".