22023021913 has 2 divisors, whose sum is σ = 22023021914. Its totient is φ = 22023021912.

The previous prime is 22023021883. The next prime is 22023021931. The reversal of 22023021913 is 31912032022.

Together with next prime (22023021931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21999712329 + 23309584 = 148323^2 + 4828^2 .

It is a cyclic number.

It is not a de Polignac number, because 22023021913 - 2²⁵ = 21989467481 is a prime.

It is not a weakly prime, because it can be changed into another prime (22023022913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011510956 + 11011510957.

It is an arithmetic number, because the mean of its divisors is an integer number (11011510957).

Almost surely, 2^22023021913 is an apocalyptic number.

It is an amenable number.

22023021913 is a deficient number, since it is larger than the sum of its proper divisors (1).

22023021913 is an equidigital number, since it uses as much as digits as its factorization.

22023021913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 22023021913 its reverse (31912032022), we get a palindrome (53935053935).

The spelling of 22023021913 in words is "twenty-two billion, twenty-three million, twenty-one thousand, nine hundred thirteen".