12311244 has 96 divisors (see below), whose sum is σ = 35777280. Its totient is φ = 3628800.

The previous prime is 12311219. The next prime is 12311251. The reversal of 12311244 is 44211321.

It is a Harshad number since it is a multiple of its sum of digits (18).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50964 + ... + 51204.

It is an arithmetic number, because the mean of its divisors is an integer number (372680).

Almost surely, 2^12311244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12311244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17888640).

12311244 is an abundant number, since it is smaller than the sum of its proper divisors (23466036).

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

12311244 is a wasteful number, since it uses less digits than its factorization.

12311244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 300 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 12311244 is about 3508.7382347505. The cubic root of 12311244 is about 230.9053415504.

Adding to 12311244 its reverse (44211321), we get a palindrome (56522565).

The spelling of 12311244 in words is "twelve million, three hundred eleven thousand, two hundred forty-four".