11111143144 has 16 divisors (see below), whose sum is σ = 20882885220. Its totient is φ = 5542373760.

The previous prime is 11111143103. The next prime is 11111143157. The reversal of 11111143144 is 44134111111.

It can be written as a sum of positive squares in 2 ways, for example, as 10312402500 + 798740644 = 101550^2 + 28262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646149 + ... + 1652884.

Almost surely, 2^11111143144 is an apocalyptic number.

It is an amenable number.

11111143144 is a deficient number, since it is larger than the sum of its proper divisors (9771742076).

11111143144 is a wasteful number, since it uses less digits than its factorization.

11111143144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299460 (or 3299456 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

Adding to 11111143144 its reverse (44134111111), we get a palindrome (55245254255).

The spelling of 11111143144 in words is "eleven billion, one hundred eleven million, one hundred forty-three thousand, one hundred forty-four".