12108231 has 16 divisors (see below), whose sum is σ = 18027520. Its totient is φ = 8031960.

The previous prime is 12108223. The next prime is 12108247. The reversal of 12108231 is 13280121.

12108231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12108231 - 2³ = 12108223 is a prime.

It is a super-2 number, since 2×12108231² = 293218515898722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108331) 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, 5016 + ... + 7026.

It is an arithmetic number, because the mean of its divisors is an integer number (1126720).

Almost surely, 2^12108231 is an apocalyptic number.

12108231 is a deficient number, since it is larger than the sum of its proper divisors (5919289).

12108231 is a wasteful number, since it uses less digits than its factorization.

12108231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 12108231 is about 3479.6883481140. The cubic root of 12108231 is about 229.6290871035.

Adding to 12108231 its reverse (13280121), we get a palindrome (25388352).

The spelling of 12108231 in words is "twelve million, one hundred eight thousand, two hundred thirty-one".