12319843 has 2 divisors, whose sum is σ = 12319844. Its totient is φ = 12319842.

The previous prime is 12319841. The next prime is 12319859. The reversal of 12319843 is 34891321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12319843 - 2¹ = 12319841 is a prime.

Together with 12319841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12319841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159921 + 6159922.

It is an arithmetic number, because the mean of its divisors is an integer number (6159922).

Almost surely, 2^12319843 is an apocalyptic number.

12319843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12319843 is an equidigital number, since it uses as much as digits as its factorization.

12319843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 12319843 is about 3509.9633901225. The cubic root of 12319843 is about 230.9590889738.

The spelling of 12319843 in words is "twelve million, three hundred nineteen thousand, eight hundred forty-three".