12111344 has 40 divisors (see below), whose sum is σ = 28399968. Its totient is φ = 4884480.

The previous prime is 12111331. The next prime is 12111349. The reversal of 12111344 is 44311121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111349) 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, 1277 + ... + 5084.

Almost surely, 2^12111344 is an apocalyptic number.

12111344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12111344 is an abundant number, since it is smaller than the sum of its proper divisors (16288624).

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

12111344 is a wasteful number, since it uses less digits than its factorization.

12111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393 (or 6387 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 12111344 is about 3480.1356295409. The cubic root of 12111344 is about 229.6487644645.

Adding to 12111344 its reverse (44311121), we get a palindrome (56422465).

The spelling of 12111344 in words is "twelve million, one hundred eleven thousand, three hundred forty-four".