12321373 has 4 divisors (see below), whose sum is σ = 12332988. Its totient is φ = 12309760.

The previous prime is 12321359. The next prime is 12321391. The reversal of 12321373 is 37312321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37312321 = 1129 ⋅33049.

It can be written as a sum of positive squares in 2 ways, for example, as 9847044 + 2474329 = 3138^2 + 1573^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321373 - 2⁵ = 12321341 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321343) 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 in 3 ways as a sum of consecutive naturals, for example, 4036 + ... + 6397.

It is an arithmetic number, because the mean of its divisors is an integer number (3083247).

Almost surely, 2^12321373 is an apocalyptic number.

It is an amenable number.

12321373 is a deficient number, since it is larger than the sum of its proper divisors (11615).

12321373 is a wasteful number, since it uses less digits than its factorization.

12321373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11614.

The product of its digits is 756, while the sum is 22.

The square root of 12321373 is about 3510.1813343473. The cubic root of 12321373 is about 230.9686495063.

Adding to 12321373 its reverse (37312321), we get a palindrome (49633694).

The spelling of 12321373 in words is "twelve million, three hundred twenty-one thousand, three hundred seventy-three".