12023112 has 48 divisors (see below), whose sum is σ = 31454640. Its totient is φ = 3829408.

The previous prime is 12023059. The next prime is 12023119. The reversal of 12023112 is 21132021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12023119) 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 11 ways as a sum of consecutive naturals, for example, 12223 + ... + 13169.

It is an arithmetic number, because the mean of its divisors is an integer number (655305).

Almost surely, 2^12023112 is an apocalyptic number.

12023112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12023112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15727320).

12023112 is an abundant number, since it is smaller than the sum of its proper divisors (19431528).

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

12023112 is a wasteful number, since it uses less digits than its factorization.

12023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12023112 is about 3467.4359402879. The cubic root of 12023112 is about 229.0897355582.

Adding to 12023112 its reverse (21132021), we get a palindrome (33155133).

It can be divided in two parts, 120 and 23112, that added together give a palindrome (23232).

The spelling of 12023112 in words is "twelve million, twenty-three thousand, one hundred twelve".