123471233191 has 2 divisors, whose sum is σ = 123471233192. Its totient is φ = 123471233190.

The previous prime is 123471233173. The next prime is 123471233233. The reversal of 123471233191 is 191332174321.

It is a weak prime.

It is an emirp because it is prime and its reverse (191332174321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123471233191 - 2¹³ = 123471224999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123471233191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123471230191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61735616595 + 61735616596.

It is an arithmetic number, because the mean of its divisors is an integer number (61735616596).

Almost surely, 2^123471233191 is an apocalyptic number.

123471233191 is a deficient number, since it is larger than the sum of its proper divisors (1).

123471233191 is an equidigital number, since it uses as much as digits as its factorization.

123471233191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The spelling of 123471233191 in words is "one hundred twenty-three billion, four hundred seventy-one million, two hundred thirty-three thousand, one hundred ninety-one".