12231329 has 8 divisors (see below), whose sum is σ = 13774080. Its totient is φ = 10760400.

The previous prime is 12231311. The next prime is 12231367. The reversal of 12231329 is 92313221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12231329 - 2⁸ = 12231073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231389) 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 7 ways as a sum of consecutive naturals, for example, 17594 + ... + 18275.

It is an arithmetic number, because the mean of its divisors is an integer number (1721760).

Almost surely, 2^12231329 is an apocalyptic number.

It is an amenable number.

12231329 is a deficient number, since it is larger than the sum of its proper divisors (1542751).

12231329 is a wasteful number, since it uses less digits than its factorization.

12231329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35911.

The product of its digits is 648, while the sum is 23.

The square root of 12231329 is about 3497.3316971657. The cubic root of 12231329 is about 230.4046374231.

It can be divided in two parts, 1223 and 1329, that added together give a palindrome (2552).

The spelling of 12231329 in words is "twelve million, two hundred thirty-one thousand, three hundred twenty-nine".