23130187 has 2 divisors, whose sum is σ = 23130188. Its totient is φ = 23130186.

The previous prime is 23130179. The next prime is 23130193. The reversal of 23130187 is 78103132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23130187 - 2³ = 23130179 is a prime.

It is not a weakly prime, because it can be changed into another prime (23130137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11565093 + 11565094.

It is an arithmetic number, because the mean of its divisors is an integer number (11565094).

Almost surely, 2^23130187 is an apocalyptic number.

23130187 is a deficient number, since it is larger than the sum of its proper divisors (1).

23130187 is an equidigital number, since it uses as much as digits as its factorization.

23130187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 23130187 is about 4809.3853037576. The cubic root of 23130187 is about 284.9222605246.

The spelling of 23130187 in words is "twenty-three million, one hundred thirty thousand, one hundred eighty-seven".