11143234544 has 20 divisors (see below), whose sum is σ = 23250787896. Its totient is φ = 5143031232.

The previous prime is 11143234517. The next prime is 11143234547. The reversal of 11143234544 is 44543234111.

It is a super-2 number, since 2×11143234544² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11143234544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143234547) 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 3 ways as a sum of consecutive naturals, for example, 26786414 + ... + 26786829.

Almost surely, 2^11143234544 is an apocalyptic number.

It is an amenable number.

11143234544 is an abundant number, since it is smaller than the sum of its proper divisors (12107553352).

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

11143234544 is a wasteful number, since it uses less digits than its factorization.

11143234544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53573264 (or 53573258 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

Adding to 11143234544 its reverse (44543234111), we get a palindrome (55686468655).

The spelling of 11143234544 in words is "eleven billion, one hundred forty-three million, two hundred thirty-four thousand, five hundred forty-four".