12143312417 has 2 divisors, whose sum is σ = 12143312418. Its totient is φ = 12143312416.

The previous prime is 12143312413. The next prime is 12143312431. The reversal of 12143312417 is 71421334121.

12143312417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11804605201 + 338707216 = 108649^2 + 18404^2 .

It is an emirp because it is prime and its reverse (71421334121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12143312417 - 2² = 12143312413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12143312417.

It is not a weakly prime, because it can be changed into another prime (12143312413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071656208 + 6071656209.

It is an arithmetic number, because the mean of its divisors is an integer number (6071656209).

Almost surely, 2^12143312417 is an apocalyptic number.

It is an amenable number.

12143312417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12143312417 is an equidigital number, since it uses as much as digits as its factorization.

12143312417 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 12143312417 its reverse (71421334121), we get a palindrome (83564646538).

The spelling of 12143312417 in words is "twelve billion, one hundred forty-three million, three hundred twelve thousand, four hundred seventeen".