11181132612 has 108 divisors (see below), whose sum is σ = 30778740720. Its totient is φ = 3420795456.

The previous prime is 11181132587. The next prime is 11181132619. The reversal of 11181132612 is 21623118111.

11181132612 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 11 + 32 + 612 = 666.

It is not an unprimeable number, because it can be changed into a prime (11181132619) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1083903 + ... + 1094169.

It is an arithmetic number, because the mean of its divisors is an integer number (284988340).

Almost surely, 2^11181132612 is an apocalyptic number.

11181132612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11181132612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15389370360).

11181132612 is an abundant number, since it is smaller than the sum of its proper divisors (19597608108).

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

11181132612 is a wasteful number, since it uses less digits than its factorization.

11181132612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10482 (or 10464 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The spelling of 11181132612 in words is "eleven billion, one hundred eighty-one million, one hundred thirty-two thousand, six hundred twelve".