23011189 has 2 divisors, whose sum is σ = 23011190. Its totient is φ = 23011188.

The previous prime is 23011141. The next prime is 23011211. The reversal of 23011189 is 98111032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14190289 + 8820900 = 3767^2 + 2970^2 .

It is a cyclic number.

It is not a de Polignac number, because 23011189 - 2¹⁵ = 22978421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23011129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11505594 + 11505595.

It is an arithmetic number, because the mean of its divisors is an integer number (11505595).

Almost surely, 2^23011189 is an apocalyptic number.

It is an amenable number.

23011189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23011189 is an equidigital number, since it uses as much as digits as its factorization.

23011189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 23011189 is about 4796.9979153633. The cubic root of 23011189 is about 284.4328064911.

The spelling of 23011189 in words is "twenty-three million, eleven thousand, one hundred eighty-nine".