23022191 has 2 divisors, whose sum is σ = 23022192. Its totient is φ = 23022190.

The previous prime is 23022169. The next prime is 23022203. The reversal of 23022191 is 19122032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23022191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23022161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11511095 + 11511096.

It is an arithmetic number, because the mean of its divisors is an integer number (11511096).

Almost surely, 2^23022191 is an apocalyptic number.

23022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23022191 is an equidigital number, since it uses as much as digits as its factorization.

23022191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 23022191 is about 4798.1445372144. The cubic root of 23022191 is about 284.4781298212.

The spelling of 23022191 in words is "twenty-three million, twenty-two thousand, one hundred ninety-one".