12431112 has 32 divisors (see below), whose sum is σ = 31920000. Its totient is φ = 4031424.

The previous prime is 12431099. The next prime is 12431117. The reversal of 12431112 is 21113421.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12431091 and 12431100.

It is not an unprimeable number, because it can be changed into a prime (12431117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6112 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (997500).

Almost surely, 2^12431112 is an apocalyptic number.

12431112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12431112 is an abundant number, since it is smaller than the sum of its proper divisors (19488888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12431112 is a wasteful number, since it uses less digits than its factorization.

12431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14045 (or 14041 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 12431112 is about 3525.7782119697. The cubic root of 12431112 is about 231.6523230657.

Adding to 12431112 its reverse (21113421), we get a palindrome (33544533).

The spelling of 12431112 in words is "twelve million, four hundred thirty-one thousand, one hundred twelve".