12243320 has 16 divisors (see below), whose sum is σ = 27547560. Its totient is φ = 4897312.

The previous prime is 12243317. The next prime is 12243323. The reversal of 12243320 is 2334221.

It is an interprime number because it is at equal distance from previous prime (12243317) and next prime (12243323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153002 + ... + 153081.

Almost surely, 2^12243320 is an apocalyptic number.

12243320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12243320 is an abundant number, since it is smaller than the sum of its proper divisors (15304240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12243320 is a wasteful number, since it uses less digits than its factorization.

12243320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306094 (or 306090 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12243320 is about 3499.0455841558. The cubic root of 12243320 is about 230.4799053319.

Adding to 12243320 its reverse (2334221), we get a palindrome (14577541).

Subtracting from 12243320 its reverse (2334221), we obtain a palindrome (9909099).

The spelling of 12243320 in words is "twelve million, two hundred forty-three thousand, three hundred twenty".