11143242344 has 128 divisors (see below), whose sum is σ = 24312506400. Its totient is φ = 4749373440.

The previous prime is 11143242323. The next prime is 11143242349. The reversal of 11143242344 is 44324234111.

It can be written as a sum of positive squares in 16 ways, for example, as 319336900 + 10823905444 = 17870^2 + 104038^2 .

It is a super-2 number, since 2×11143242344² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11143242349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6806294 + ... + 6807930.

Almost surely, 2^11143242344 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 11143242344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12156253200).

11143242344 is an abundant number, since it is smaller than the sum of its proper divisors (13169264056).

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

11143242344 is a wasteful number, since it uses less digits than its factorization.

11143242344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1779 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 11143242344 its reverse (44324234111), we get a palindrome (55467476455).

The spelling of 11143242344 in words is "eleven billion, one hundred forty-three million, two hundred forty-two thousand, three hundred forty-four".