12109233 has 8 divisors (see below), whose sum is σ = 16180000. Its totient is φ = 8055648.

The previous prime is 12109231. The next prime is 12109241. The reversal of 12109233 is 33290121.

It is a happy number.

12109233 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12109233 - 2¹ = 12109231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12109231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548 + ... + 5541.

It is an arithmetic number, because the mean of its divisors is an integer number (2022500).

Almost surely, 2^12109233 is an apocalyptic number.

It is an amenable number.

12109233 is a deficient number, since it is larger than the sum of its proper divisors (4070767).

12109233 is an equidigital number, since it uses as much as digits as its factorization.

12109233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 12109233 is about 3479.8323235466. The cubic root of 12109233 is about 229.6354211419.

Adding to 12109233 its reverse (33290121), we get a palindrome (45399354).

The spelling of 12109233 in words is "twelve million, one hundred nine thousand, two hundred thirty-three".