23103181 has 2 divisors, whose sum is σ = 23103182. Its totient is φ = 23103180.

The previous prime is 23103167. The next prime is 23103191. The reversal of 23103181 is 18130132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 4137156 = 4355^2 + 2034^2 .

It is a cyclic number.

It is not a de Polignac number, because 23103181 - 2⁵ = 23103149 is a prime.

It is a super-2 number, since 2×23103181² = 1067513944637522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23103121) 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, 11551590 + 11551591.

It is an arithmetic number, because the mean of its divisors is an integer number (11551591).

Almost surely, 2^23103181 is an apocalyptic number.

It is an amenable number.

23103181 is a deficient number, since it is larger than the sum of its proper divisors (1).

23103181 is an equidigital number, since it uses as much as digits as its factorization.

23103181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 23103181 is about 4806.5768484442. The cubic root of 23103181 is about 284.8113289072.

The spelling of 23103181 in words is "twenty-three million, one hundred three thousand, one hundred eighty-one".