12011317 has 2 divisors, whose sum is σ = 12011318. Its totient is φ = 12011316.

The previous prime is 12011309. The next prime is 12011323. The reversal of 12011317 is 71311021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6507601 + 5503716 = 2551^2 + 2346^2 .

It is an emirp because it is prime and its reverse (71311021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011317 - 2³ = 12011309 is a prime.

It is a super-4 number, since 4×12011317⁴ (a number of 29 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12011317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005658 + 6005659.

It is an arithmetic number, because the mean of its divisors is an integer number (6005659).

Almost surely, 2^12011317 is an apocalyptic number.

It is an amenable number.

12011317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011317 is an equidigital number, since it uses as much as digits as its factorization.

12011317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 12011317 is about 3465.7346984442. The cubic root of 12011317 is about 229.0147966260.

Adding to 12011317 its reverse (71311021), we get a palindrome (83322338).

The spelling of 12011317 in words is "twelve million, eleven thousand, three hundred seventeen".