12173867423 has 2 divisors, whose sum is σ = 12173867424. Its totient is φ = 12173867422.

The previous prime is 12173867393. The next prime is 12173867437. The reversal of 12173867423 is 32476837121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12173867423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12173867443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086933711 + 6086933712.

It is an arithmetic number, because the mean of its divisors is an integer number (6086933712).

Almost surely, 2^12173867423 is an apocalyptic number.

12173867423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12173867423 is an equidigital number, since it uses as much as digits as its factorization.

12173867423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 44.

The spelling of 12173867423 in words is "twelve billion, one hundred seventy-three million, eight hundred sixty-seven thousand, four hundred twenty-three".