12340313 has 2 divisors, whose sum is σ = 12340314. Its totient is φ = 12340312.

The previous prime is 12340309. The next prime is 12340343. The reversal of 12340313 is 31304321.

It is a happy number.

12340313 is digitally balanced in base 2, because in such base 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., 11744329 + 595984 = 3427^2 + 772^2 .

It is an emirp because it is prime and its reverse (31304321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12340313 - 2² = 12340309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12340291 and 12340300.

It is not a weakly prime, because it can be changed into another prime (12340343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170156 + 6170157.

It is an arithmetic number, because the mean of its divisors is an integer number (6170157).

Almost surely, 2^12340313 is an apocalyptic number.

It is an amenable number.

12340313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340313 is an equidigital number, since it uses as much as digits as its factorization.

12340313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 12340313 is about 3512.8781646963. The cubic root of 12340313 is about 231.0869346645.

Adding to 12340313 its reverse (31304321), we get a palindrome (43644634).

The spelling of 12340313 in words is "twelve million, three hundred forty thousand, three hundred thirteen".