23191178267 has 2 divisors, whose sum is σ = 23191178268. Its totient is φ = 23191178266.

The previous prime is 23191178183. The next prime is 23191178273. The reversal of 23191178267 is 76287119132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23191178267 - 2⁸ = 23191178011 is a prime.

It is not a weakly prime, because it can be changed into another prime (23191178467) 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, 11595589133 + 11595589134.

It is an arithmetic number, because the mean of its divisors is an integer number (11595589134).

Almost surely, 2^23191178267 is an apocalyptic number.

23191178267 is a deficient number, since it is larger than the sum of its proper divisors (1).

23191178267 is an equidigital number, since it uses as much as digits as its factorization.

23191178267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 47.

The spelling of 23191178267 in words is "twenty-three billion, one hundred ninety-one million, one hundred seventy-eight thousand, two hundred sixty-seven".