11131111124 has 12 divisors (see below), whose sum is σ = 22262222304. Its totient is φ = 4770476184.

The previous prime is 11131111111. The next prime is 11131111157. The reversal of 11131111124 is 42111113111.

11131111124 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198769814 + ... + 198769869.

It is an arithmetic number, because the mean of its divisors is an integer number (1855185192).

Almost surely, 2^11131111124 is an apocalyptic number.

11131111124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11131111124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11131111124 is a wasteful number, since it uses less digits than its factorization.

11131111124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397539694 (or 397539692 counting only the distinct ones).

The product of its digits is 24, while the sum is 17.

Adding to 11131111124 its reverse (42111113111), we get a palindrome (53242224235).

The spelling of 11131111124 in words is "eleven billion, one hundred thirty-one million, one hundred eleven thousand, one hundred twenty-four".