12431423317 has 2 divisors, whose sum is σ = 12431423318. Its totient is φ = 12431423316.

The previous prime is 12431423311. The next prime is 12431423351. The reversal of 12431423317 is 71332413421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6950390161 + 5481033156 = 83369^2 + 74034^2 .

It is a cyclic number.

It is not a de Polignac number, because 12431423317 - 2²⁷ = 12297205589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12431423311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215711658 + 6215711659.

It is an arithmetic number, because the mean of its divisors is an integer number (6215711659).

Almost surely, 2^12431423317 is an apocalyptic number.

It is an amenable number.

12431423317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431423317 is an equidigital number, since it uses as much as digits as its factorization.

12431423317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

Adding to 12431423317 its reverse (71332413421), we get a palindrome (83763836738).

The spelling of 12431423317 in words is "twelve billion, four hundred thirty-one million, four hundred twenty-three thousand, three hundred seventeen".