12311017 has 2 divisors, whose sum is σ = 12311018. Its totient is φ = 12311016.

The previous prime is 12310997. The next prime is 12311023. The reversal of 12311017 is 71011321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9585216 + 2725801 = 3096^2 + 1651^2 .

It is an emirp because it is prime and its reverse (71011321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12311017 - 2⁷ = 12310889 is a prime.

It is a super-3 number, since 3×12311017³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (12311027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155508 + 6155509.

It is an arithmetic number, because the mean of its divisors is an integer number (6155509).

Almost surely, 2^12311017 is an apocalyptic number.

It is an amenable number.

12311017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311017 is an equidigital number, since it uses as much as digits as its factorization.

12311017 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 12311017 is about 3508.7058867907. The cubic root of 12311017 is about 230.9039223644.

Adding to 12311017 its reverse (71011321), we get a palindrome (83322338).

The spelling of 12311017 in words is "twelve million, three hundred eleven thousand, seventeen".