12303218 has 8 divisors (see below), whose sum is σ = 19050240. Its totient is φ = 5953140.

The previous prime is 12303217. The next prime is 12303227. The reversal of 12303218 is 81230321.

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

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 16.

It is a zygodrome in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 12303218.

It is not an unprimeable number, because it can be changed into a prime (12303217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99158 + ... + 99281.

It is an arithmetic number, because the mean of its divisors is an integer number (2381280).

Almost surely, 2^12303218 is an apocalyptic number.

12303218 is a deficient number, since it is larger than the sum of its proper divisors (6747022).

12303218 is a wasteful number, since it uses less digits than its factorization.

12303218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198472.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12303218 is about 3507.5943323024. The cubic root of 12303218 is about 230.8551530359.

Adding to 12303218 its reverse (81230321), we get a palindrome (93533539).

It can be divided in two parts, 12303 and 218, that added together give a palindrome (12521).

The spelling of 12303218 in words is "twelve million, three hundred three thousand, two hundred eighteen".