12313393 has 2 divisors, whose sum is σ = 12313394. Its totient is φ = 12313392.

The previous prime is 12313381. The next prime is 12313409. The reversal of 12313393 is 39331321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8898289 + 3415104 = 2983^2 + 1848^2 .

It is an emirp because it is prime and its reverse (39331321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12313393 - 2⁵ = 12313361 is a prime.

It is not a weakly prime, because it can be changed into another prime (12313333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156696 + 6156697.

It is an arithmetic number, because the mean of its divisors is an integer number (6156697).

Almost surely, 2^12313393 is an apocalyptic number.

It is an amenable number.

12313393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313393 is an equidigital number, since it uses as much as digits as its factorization.

12313393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 25.

The square root of 12313393 is about 3509.0444568287. The cubic root of 12313393 is about 230.9187760636.

It can be divided in two parts, 1231 and 3393, that added together give a square (4624 = 68²).

The spelling of 12313393 in words is "twelve million, three hundred thirteen thousand, three hundred ninety-three".