22123321013 has 2 divisors, whose sum is σ = 22123321014. Its totient is φ = 22123321012.

The previous prime is 22123320949. The next prime is 22123321019. The reversal of 22123321013 is 31012332122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20430985969 + 1692335044 = 142937^2 + 41138^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123321013 - 2⁶ = 22123320949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22123321019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061660506 + 11061660507.

It is an arithmetic number, because the mean of its divisors is an integer number (11061660507).

Almost surely, 2^22123321013 is an apocalyptic number.

It is an amenable number.

22123321013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123321013 is an equidigital number, since it uses as much as digits as its factorization.

22123321013 is an evil number, because the sum of its binary digits is even.

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

Adding to 22123321013 its reverse (31012332122), we get a palindrome (53135653135).

The spelling of 22123321013 in words is "twenty-two billion, one hundred twenty-three million, three hundred twenty-one thousand, thirteen".