23381431091 has 2 divisors, whose sum is σ = 23381431092. Its totient is φ = 23381431090.

The previous prime is 23381431063. The next prime is 23381431093. The reversal of 23381431091 is 19013418332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23381431091 - 2¹⁰ = 23381430067 is a prime.

Together with 23381431093, 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 (23381431093) 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, 11690715545 + 11690715546.

It is an arithmetic number, because the mean of its divisors is an integer number (11690715546).

Almost surely, 2^23381431091 is an apocalyptic number.

23381431091 is a deficient number, since it is larger than the sum of its proper divisors (1).

23381431091 is an equidigital number, since it uses as much as digits as its factorization.

23381431091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 23381431091 in words is "twenty-three billion, three hundred eighty-one million, four hundred thirty-one thousand, ninety-one".