23130905205 has 16 divisors (see below), whose sum is σ = 37038191040. Its totient is φ = 12326901888.

The previous prime is 23130905201. The next prime is 23130905263. The reversal of 23130905205 is 50250903132.

It is not a de Polignac number, because 23130905205 - 2² = 23130905201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130905201) 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 15 ways as a sum of consecutive naturals, for example, 578827 + ... + 617496.

It is an arithmetic number, because the mean of its divisors is an integer number (2314886940).

Almost surely, 2^23130905205 is an apocalyptic number.

It is an amenable number.

23130905205 is a deficient number, since it is larger than the sum of its proper divisors (13907285835).

23130905205 is a wasteful number, since it uses less digits than its factorization.

23130905205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197620.

The product of its (nonzero) digits is 8100, while the sum is 30.

The spelling of 23130905205 in words is "twenty-three billion, one hundred thirty million, nine hundred five thousand, two hundred five".