12318033 has 16 divisors (see below), whose sum is σ = 20214656. Its totient is φ = 6497280.

The previous prime is 12317993. The next prime is 12318043. The reversal of 12318033 is 33081321.

It is a happy number.

It is not a de Polignac number, because 12318033 - 2¹² = 12313937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12318043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22288 + ... + 22833.

It is an arithmetic number, because the mean of its divisors is an integer number (1263416).

Almost surely, 2^12318033 is an apocalyptic number.

12318033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12318033 is a deficient number, since it is larger than the sum of its proper divisors (7896623).

12318033 is a wasteful number, since it uses less digits than its factorization.

12318033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45144.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12318033 is about 3509.7055432044. The cubic root of 12318033 is about 230.9477777792.

Adding to 12318033 its reverse (33081321), we get a palindrome (45399354).

The spelling of 12318033 in words is "twelve million, three hundred eighteen thousand, thirty-three".