12118313 has 2 divisors, whose sum is σ = 12118314. Its totient is φ = 12118312.

The previous prime is 12118279. The next prime is 12118349. The reversal of 12118313 is 31381121.

12118313 is digitally balanced in base 2 and base 3, because in such bases 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., 9467929 + 2650384 = 3077^2 + 1628^2 .

It is an emirp because it is prime and its reverse (31381121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12118313 - 2¹⁰ = 12117289 is a prime.

It is not a weakly prime, because it can be changed into another prime (12118373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6059156 + 6059157.

It is an arithmetic number, because the mean of its divisors is an integer number (6059157).

Almost surely, 2^12118313 is an apocalyptic number.

It is an amenable number.

12118313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12118313 is an equidigital number, since it uses as much as digits as its factorization.

12118313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 20.

The square root of 12118313 is about 3481.1367396297. The cubic root of 12118313 is about 229.6928034902.

Adding to 12118313 its reverse (31381121), we get a palindrome (43499434).

The spelling of 12118313 in words is "twelve million, one hundred eighteen thousand, three hundred thirteen".