12343277491 has 2 divisors, whose sum is σ = 12343277492. Its totient is φ = 12343277490.

The previous prime is 12343277459. The next prime is 12343277503. The reversal of 12343277491 is 19477234321.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19477234321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12343277491 - 2⁵ = 12343277459 is a prime.

It is not a weakly prime, because it can be changed into another prime (12343277291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171638745 + 6171638746.

It is an arithmetic number, because the mean of its divisors is an integer number (6171638746).

Almost surely, 2^12343277491 is an apocalyptic number.

12343277491 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343277491 is an equidigital number, since it uses as much as digits as its factorization.

12343277491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The spelling of 12343277491 in words is "twelve billion, three hundred forty-three million, two hundred seventy-seven thousand, four hundred ninety-one".