23000291 has 2 divisors, whose sum is σ = 23000292. Its totient is φ = 23000290.

The previous prime is 23000287. The next prime is 23000293. The reversal of 23000291 is 19200032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23000291 - 2² = 23000287 is a prime.

Together with 23000293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23000293) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500145 + 11500146.

It is an arithmetic number, because the mean of its divisors is an integer number (11500146).

Almost surely, 2^23000291 is an apocalyptic number.

23000291 is a deficient number, since it is larger than the sum of its proper divisors (1).

23000291 is an equidigital number, since it uses as much as digits as its factorization.

23000291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 23000291 is about 4795.8618620640. The cubic root of 23000291 is about 284.3878973501.

The spelling of 23000291 in words is "twenty-three million, two hundred ninety-one", and thus it is an aban number.