23110012309 has 2 divisors, whose sum is σ = 23110012310. Its totient is φ = 23110012308.

The previous prime is 23110012307. The next prime is 23110012351. The reversal of 23110012309 is 90321001132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18168344100 + 4941668209 = 134790^2 + 70297^2 .

It is a cyclic number.

It is not a de Polignac number, because 23110012309 - 2¹ = 23110012307 is a prime.

It is a super-2 number, since 2×23110012309² (a number of 22 digits) contains 22 as substring.

Together with 23110012307, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23110012309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23110012307) 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, 11555006154 + 11555006155.

It is an arithmetic number, because the mean of its divisors is an integer number (11555006155).

Almost surely, 2^23110012309 is an apocalyptic number.

It is an amenable number.

23110012309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23110012309 is an equidigital number, since it uses as much as digits as its factorization.

23110012309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 23110012309 in words is "twenty-three billion, one hundred ten million, twelve thousand, three hundred nine".