23201132191 has 2 divisors, whose sum is σ = 23201132192. Its totient is φ = 23201132190.

The previous prime is 23201132167. The next prime is 23201132197. The reversal of 23201132191 is 19123110232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23201132191 - 2⁷ = 23201132063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23201132197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600566095 + 11600566096.

It is an arithmetic number, because the mean of its divisors is an integer number (11600566096).

Almost surely, 2^23201132191 is an apocalyptic number.

23201132191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201132191 is an equidigital number, since it uses as much as digits as its factorization.

23201132191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 23201132191 in words is "twenty-three billion, two hundred one million, one hundred thirty-two thousand, one hundred ninety-one".