23200012109 has 2 divisors, whose sum is σ = 23200012110. Its totient is φ = 23200012108.

The previous prime is 23200012067. The next prime is 23200012139. The reversal of 23200012109 is 90121000232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17956804009 + 5243208100 = 134003^2 + 72410^2 .

It is a cyclic number.

It is not a de Polignac number, because 23200012109 - 2⁸ = 23200011853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23200012139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600006054 + 11600006055.

It is an arithmetic number, because the mean of its divisors is an integer number (11600006055).

Almost surely, 2^23200012109 is an apocalyptic number.

It is an amenable number.

23200012109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23200012109 is an equidigital number, since it uses as much as digits as its factorization.

23200012109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 23200012109 in words is "twenty-three billion, two hundred million, twelve thousand, one hundred nine".