12431134217 has 2 divisors, whose sum is σ = 12431134218. Its totient is φ = 12431134216.

The previous prime is 12431134207. The next prime is 12431134249. The reversal of 12431134217 is 71243113421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12430243081 + 891136 = 111491^2 + 944^2 .

It is a cyclic number.

It is not a de Polignac number, because 12431134217 - 2¹⁴ = 12431117833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12431134217.

It is not a weakly prime, because it can be changed into another prime (12431134207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215567108 + 6215567109.

It is an arithmetic number, because the mean of its divisors is an integer number (6215567109).

Almost surely, 2^12431134217 is an apocalyptic number.

It is an amenable number.

12431134217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431134217 is an equidigital number, since it uses as much as digits as its factorization.

12431134217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

Adding to 12431134217 its reverse (71243113421), we get a palindrome (83674247638).

The spelling of 12431134217 in words is "twelve billion, four hundred thirty-one million, one hundred thirty-four thousand, two hundred seventeen".