23022251789 has 2 divisors, whose sum is σ = 23022251790. Its totient is φ = 23022251788.

The previous prime is 23022251783. The next prime is 23022251803. The reversal of 23022251789 is 98715222032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17111256100 + 5910995689 = 130810^2 + 76883^2 .

It is a cyclic number.

It is not a de Polignac number, because 23022251789 - 2³² = 18727284493 is a prime.

It is a super-2 number, since 2×23022251789² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23022251783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11511125894 + 11511125895.

It is an arithmetic number, because the mean of its divisors is an integer number (11511125895).

Almost surely, 2^23022251789 is an apocalyptic number.

It is an amenable number.

23022251789 is a deficient number, since it is larger than the sum of its proper divisors (1).

23022251789 is an equidigital number, since it uses as much as digits as its factorization.

23022251789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 23022251789 in words is "twenty-three billion, twenty-two million, two hundred fifty-one thousand, seven hundred eighty-nine".