23143022209 has 2 divisors, whose sum is σ = 23143022210. Its totient is φ = 23143022208.

The previous prime is 23143022207. The next prime is 23143022239. The reversal of 23143022209 is 90222034132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23096400625 + 46621584 = 151975^2 + 6828^2 .

It is a cyclic number.

It is not a de Polignac number, because 23143022209 - 2¹ = 23143022207 is a prime.

Together with 23143022207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23143022207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571511104 + 11571511105.

It is an arithmetic number, because the mean of its divisors is an integer number (11571511105).

Almost surely, 2^23143022209 is an apocalyptic number.

It is an amenable number.

23143022209 is a deficient number, since it is larger than the sum of its proper divisors (1).

23143022209 is an equidigital number, since it uses as much as digits as its factorization.

23143022209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 23143022209 in words is "twenty-three billion, one hundred forty-three million, twenty-two thousand, two hundred nine".