23270657209 has 2 divisors, whose sum is σ = 23270657210. Its totient is φ = 23270657208.

The previous prime is 23270657153. The next prime is 23270657219. The reversal of 23270657209 is 90275607232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22930439184 + 340218025 = 151428^2 + 18445^2 .

It is a cyclic number.

It is not a de Polignac number, because 23270657209 - 2²⁹ = 22733786297 is a prime.

It is not a weakly prime, because it can be changed into another prime (23270657219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11635328604 + 11635328605.

It is an arithmetic number, because the mean of its divisors is an integer number (11635328605).

Almost surely, 2^23270657209 is an apocalyptic number.

It is an amenable number.

23270657209 is a deficient number, since it is larger than the sum of its proper divisors (1).

23270657209 is an equidigital number, since it uses as much as digits as its factorization.

23270657209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 23270657209 in words is "twenty-three billion, two hundred seventy million, six hundred fifty-seven thousand, two hundred nine".