12320326 has 4 divisors (see below), whose sum is σ = 18480492. Its totient is φ = 6160162.

The previous prime is 12320309. The next prime is 12320339. The reversal of 12320326 is 62302321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080080 + ... + 3080083.

It is an arithmetic number, because the mean of its divisors is an integer number (4620123).

Almost surely, 2^12320326 is an apocalyptic number.

12320326 is a deficient number, since it is larger than the sum of its proper divisors (6160166).

12320326 is an equidigital number, since it uses as much as digits as its factorization.

12320326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160165.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 12320326 is about 3510.0321935846. The cubic root of 12320326 is about 230.9621071881.

Adding to 12320326 its reverse (62302321), we get a palindrome (74622647).

It can be divided in two parts, 123 and 20326, that added together give a square (20449 = 143²).

The spelling of 12320326 in words is "twelve million, three hundred twenty thousand, three hundred twenty-six".