11115441144 has 48 divisors (see below), whose sum is σ = 30130256520. Its totient is φ = 3701954880.

The previous prime is 11115441131. The next prime is 11115441149. The reversal of 11115441144 is 44114451111.

11115441144 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 544 + 114 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115441149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18394 + ... + 150230.

Almost surely, 2^11115441144 is an apocalyptic number.

It is an amenable number.

11115441144 is an abundant number, since it is smaller than the sum of its proper divisors (19014815376).

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

11115441144 is a wasteful number, since it uses less digits than its factorization.

11115441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133020 (or 133013 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

Adding to 11115441144 its reverse (44114451111), we get a palindrome (55229892255).

The spelling of 11115441144 in words is "eleven billion, one hundred fifteen million, four hundred forty-one thousand, one hundred forty-four".