23201230009 has 2 divisors, whose sum is σ = 23201230010. Its totient is φ = 23201230008.

The previous prime is 23201230001. The next prime is 23201230057. The reversal of 23201230009 is 90003210232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12561926400 + 10639303609 = 112080^2 + 103147^2 .

It is a cyclic number.

It is not a de Polignac number, because 23201230009 - 2³ = 23201230001 is a prime.

It is not a weakly prime, because it can be changed into another prime (23201230001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600615004 + 11600615005.

It is an arithmetic number, because the mean of its divisors is an integer number (11600615005).

Almost surely, 2^23201230009 is an apocalyptic number.

It is an amenable number.

23201230009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201230009 is an equidigital number, since it uses as much as digits as its factorization.

23201230009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The spelling of 23201230009 in words is "twenty-three billion, two hundred one million, two hundred thirty thousand, nine".