191253339023 has 2 divisors, whose sum is σ = 191253339024. Its totient is φ = 191253339022.

The previous prime is 191253339007. The next prime is 191253339029. The reversal of 191253339023 is 320933352191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 191253339023 - 2⁴ = 191253339007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191253339029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95626669511 + 95626669512.

It is an arithmetic number, because the mean of its divisors is an integer number (95626669512).

Almost surely, 2^191253339023 is an apocalyptic number.

191253339023 is a deficient number, since it is larger than the sum of its proper divisors (1).

191253339023 is an equidigital number, since it uses as much as digits as its factorization.

191253339023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 41.

The spelling of 191253339023 in words is "one hundred ninety-one billion, two hundred fifty-three million, three hundred thirty-nine thousand, twenty-three".