23130635609 has 4 divisors (see below), whose sum is σ = 23136605604. Its totient is φ = 23124665616.

The previous prime is 23130635599. The next prime is 23130635621. The reversal of 23130635609 is 90653603132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1913800009 + 21216835600 = 43747^2 + 145660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23130635609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23130635669) 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 in 3 ways as a sum of consecutive naturals, for example, 2979182 + ... + 2986935.

It is an arithmetic number, because the mean of its divisors is an integer number (5784151401).

Almost surely, 2^23130635609 is an apocalyptic number.

It is an amenable number.

23130635609 is a deficient number, since it is larger than the sum of its proper divisors (5969995).

23130635609 is an equidigital number, since it uses as much as digits as its factorization.

23130635609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5969994.

The product of its (nonzero) digits is 87480, while the sum is 38.

The spelling of 23130635609 in words is "twenty-three billion, one hundred thirty million, six hundred thirty-five thousand, six hundred nine".