12431112444 has 120 divisors (see below), whose sum is σ = 35132950160. Its totient is φ = 3819446784.

The previous prime is 12431112413. The next prime is 12431112467. The reversal of 12431112444 is 44421113421.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 200484 + ... + 255060.

Almost surely, 2^12431112444 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 12431112444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17566475080).

12431112444 is an abundant number, since it is smaller than the sum of its proper divisors (22701837716).

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

12431112444 is a wasteful number, since it uses less digits than its factorization.

12431112444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54649 (or 54638 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 12431112444 its reverse (44421113421), we get a palindrome (56852225865).

The spelling of 12431112444 in words is "twelve billion, four hundred thirty-one million, one hundred twelve thousand, four hundred forty-four".