12403371217 has 2 divisors, whose sum is σ = 12403371218. Its totient is φ = 12403371216.

The previous prime is 12403371203. The next prime is 12403371223. The reversal of 12403371217 is 71217330421.

12403371217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12391919761 + 11451456 = 111319^2 + 3384^2 .

It is an emirp because it is prime and its reverse (71217330421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12403371217 - 2²⁷ = 12269153489 is a prime.

It is a super-2 number, since 2×12403371217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12403371317) 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, 6201685608 + 6201685609.

It is an arithmetic number, because the mean of its divisors is an integer number (6201685609).

Almost surely, 2^12403371217 is an apocalyptic number.

It is an amenable number.

12403371217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12403371217 is an equidigital number, since it uses as much as digits as its factorization.

12403371217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The spelling of 12403371217 in words is "twelve billion, four hundred three million, three hundred seventy-one thousand, two hundred seventeen".