23231113391 has 2 divisors, whose sum is σ = 23231113392. Its totient is φ = 23231113390.

The previous prime is 23231113387. The next prime is 23231113417. The reversal of 23231113391 is 19331113232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23231113391 - 2² = 23231113387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231113331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615556695 + 11615556696.

It is an arithmetic number, because the mean of its divisors is an integer number (11615556696).

Almost surely, 2^23231113391 is an apocalyptic number.

23231113391 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231113391 is an equidigital number, since it uses as much as digits as its factorization.

23231113391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 29.

The spelling of 23231113391 in words is "twenty-three billion, two hundred thirty-one million, one hundred thirteen thousand, three hundred ninety-one".