12108831 has 12 divisors (see below), whose sum is σ = 18781272. Its totient is φ = 6919248.

The previous prime is 12108829. The next prime is 12108847. The reversal of 12108831 is 13880121.

12108831 is digitally balanced in base 2, base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12108831 - 2¹ = 12108829 is a prime.

It is a super-2 number, since 2×12108831² = 293247576373122, which contains 22 as substring.

12108831 is strictly pandigital in base 8.

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 11 ways as a sum of consecutive naturals, for example, 41040 + ... + 41333.

It is an arithmetic number, because the mean of its divisors is an integer number (1565106).

Almost surely, 2^12108831 is an apocalyptic number.

12108831 is a deficient number, since it is larger than the sum of its proper divisors (6672441).

12108831 is an equidigital number, since it uses as much as digits as its factorization.

12108831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82390 (or 82383 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 12108831 is about 3479.7745616634. The cubic root of 12108831 is about 229.6328799828.

Adding to 12108831 its reverse (13880121), we get a palindrome (25988952).

The spelling of 12108831 in words is "twelve million, one hundred eight thousand, eight hundred thirty-one".