12319823 has 4 divisors (see below), whose sum is σ = 12353760. Its totient is φ = 12285888.

The previous prime is 12319799. The next prime is 12319831. The reversal of 12319823 is 32891321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12319823 - 2¹⁰ = 12318799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12319843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16418 + ... + 17151.

It is an arithmetic number, because the mean of its divisors is an integer number (3088440).

Almost surely, 2^12319823 is an apocalyptic number.

12319823 is a deficient number, since it is larger than the sum of its proper divisors (33937).

12319823 is an equidigital number, since it uses as much as digits as its factorization.

12319823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33936.

The product of its digits is 2592, while the sum is 29.

The square root of 12319823 is about 3509.9605410887. The cubic root of 12319823 is about 230.9589639942.

The spelling of 12319823 in words is "twelve million, three hundred nineteen thousand, eight hundred twenty-three".