12109342 has 8 divisors (see below), whose sum is σ = 20758896. Its totient is φ = 5189712.

The previous prime is 12109319. The next prime is 12109343. The reversal of 12109342 is 24390121.

12109342 is digitally balanced in base 2, because in such base 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109343) 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, 432463 + ... + 432490.

It is an arithmetic number, because the mean of its divisors is an integer number (2594862).

Almost surely, 2^12109342 is an apocalyptic number.

12109342 is a deficient number, since it is larger than the sum of its proper divisors (8649554).

12109342 is an equidigital number, since it uses as much as digits as its factorization.

12109342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864962.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12109342 is about 3479.8479851856. The cubic root of 12109342 is about 229.6361101529.

Adding to 12109342 its reverse (24390121), we get a palindrome (36499463).

The spelling of 12109342 in words is "twelve million, one hundred nine thousand, three hundred forty-two".