11443131344 has 80 divisors (see below), whose sum is σ = 23342256000. Its totient is φ = 5426910720.

The previous prime is 11443131331. The next prime is 11443131347. The reversal of 11443131344 is 44313134411.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11443131347) 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 15 ways as a sum of consecutive naturals, for example, 13803122 + ... + 13803950.

It is an arithmetic number, because the mean of its divisors is an integer number (291778200).

Almost surely, 2^11443131344 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 11443131344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11671128000).

11443131344 is an abundant number, since it is smaller than the sum of its proper divisors (11899124656).

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

11443131344 is a wasteful number, since it uses less digits than its factorization.

11443131344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1350 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

Adding to 11443131344 its reverse (44313134411), we get a palindrome (55756265755).

It can be divided in two parts, 11 and 443131344, that multiplied together give a palindrome (4874444784).

The spelling of 11443131344 in words is "eleven billion, four hundred forty-three million, one hundred thirty-one thousand, three hundred forty-four".