12113444 has 24 divisors (see below), whose sum is σ = 24792768. Its totient is φ = 5070240.

The previous prime is 12113443. The next prime is 12113447. The reversal of 12113444 is 44431121.

It is a super-2 number, since 2×12113444² = 293471051082272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12113443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3827 + ... + 6234.

It is an arithmetic number, because the mean of its divisors is an integer number (1033032).

Almost surely, 2^12113444 is an apocalyptic number.

12113444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12113444 is an abundant number, since it is smaller than the sum of its proper divisors (12679324).

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

12113444 is a wasteful number, since it uses less digits than its factorization.

12113444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115 (or 10113 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 12113444 is about 3480.4373288425. The cubic root of 12113444 is about 229.6620367194.

Adding to 12113444 its reverse (44431121), we get a palindrome (56544565).

The spelling of 12113444 in words is "twelve million, one hundred thirteen thousand, four hundred forty-four".