12317111 has 4 divisors (see below), whose sum is σ = 12965400. Its totient is φ = 11668824.

The previous prime is 12317101. The next prime is 12317119. The reversal of 12317111 is 11171321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11171321 = 7 ⋅1595903.

It is a cyclic number.

It is not a de Polignac number, because 12317111 - 2⁶ = 12317047 is a prime.

It is a super-2 number, since 2×12317111² = 303422446772642, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12317111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317119) 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 in 3 ways as a sum of consecutive naturals, for example, 324116 + ... + 324153.

It is an arithmetic number, because the mean of its divisors is an integer number (3241350).

Almost surely, 2^12317111 is an apocalyptic number.

12317111 is a deficient number, since it is larger than the sum of its proper divisors (648289).

12317111 is an equidigital number, since it uses as much as digits as its factorization.

12317111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648288.

The product of its digits is 42, while the sum is 17.

The square root of 12317111 is about 3509.5741906961. The cubic root of 12317111 is about 230.9420155181.

Adding to 12317111 its reverse (11171321), we get a palindrome (23488432).

The spelling of 12317111 in words is "twelve million, three hundred seventeen thousand, one hundred eleven".