12343813 has 2 divisors, whose sum is σ = 12343814. Its totient is φ = 12343812.

The previous prime is 12343783. The next prime is 12343817. The reversal of 12343813 is 31834321.

12343813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11607649 + 736164 = 3407^2 + 858^2 .

It is a cyclic number.

It is not a de Polignac number, because 12343813 - 2¹³ = 12335621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12343817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171906 + 6171907.

It is an arithmetic number, because the mean of its divisors is an integer number (6171907).

Almost surely, 2^12343813 is an apocalyptic number.

It is an amenable number.

12343813 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343813 is an equidigital number, since it uses as much as digits as its factorization.

12343813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 12343813 is about 3513.3762963850. The cubic root of 12343813 is about 231.1087798105.

The spelling of 12343813 in words is "twelve million, three hundred forty-three thousand, eight hundred thirteen".