12323819 has 4 divisors (see below), whose sum is σ = 12336096. Its totient is φ = 12311544.

The previous prime is 12323813. The next prime is 12323851. The reversal of 12323819 is 91832321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12323819 is a prime.

It is a super-2 number, since 2×12323819² = 303753029489522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12323791 and 12323800.

It is not an unprimeable number, because it can be changed into a prime (12323813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4484 + ... + 6689.

It is an arithmetic number, because the mean of its divisors is an integer number (3084024).

Almost surely, 2^12323819 is an apocalyptic number.

12323819 is a deficient number, since it is larger than the sum of its proper divisors (12277).

12323819 is a wasteful number, since it uses less digits than its factorization.

12323819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12276.

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

The square root of 12323819 is about 3510.5297321060. The cubic root of 12323819 is about 230.9839322170.

The spelling of 12323819 in words is "twelve million, three hundred twenty-three thousand, eight hundred nineteen".