12231313 has 8 divisors (see below), whose sum is σ = 12989160. Its totient is φ = 11477760.

The previous prime is 12231311. The next prime is 12231367. The reversal of 12231313 is 31313221.

12231313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 12229009 = 48^2 + 3497^2 .

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 12231313 - 2¹ = 12231311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231311) 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, 6303 + ... + 8011.

It is an arithmetic number, because the mean of its divisors is an integer number (1623645).

Almost surely, 2^12231313 is an apocalyptic number.

It is an amenable number.

12231313 is a deficient number, since it is larger than the sum of its proper divisors (757847).

12231313 is a wasteful number, since it uses less digits than its factorization.

12231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147.

The product of its digits is 108, while the sum is 16.

The square root of 12231313 is about 3497.3294097068. The cubic root of 12231313 is about 230.4045369577.

Adding to 12231313 its reverse (31313221), we get a palindrome (43544534).

It can be divided in two parts, 12231 and 313, that added together give a square (12544 = 112²).

The spelling of 12231313 in words is "twelve million, two hundred thirty-one thousand, three hundred thirteen".