11011001112 has 64 divisors (see below), whose sum is σ = 30954672000. Its totient is φ = 3626106912.

The previous prime is 11011001077. The next prime is 11011001143. The reversal of 11011001112 is 21110011011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11011001094 and 11011001103.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 289162 + ... + 325017.

It is an arithmetic number, because the mean of its divisors is an integer number (483666750).

Almost surely, 2^11011001112 is an apocalyptic number.

11011001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11011001112 is an abundant number, since it is smaller than the sum of its proper divisors (19943670888).

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

11011001112 is a wasteful number, since it uses less digits than its factorization.

11011001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614277 (or 614267 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11011001112 its reverse (21110011011), we get a palindrome (32121012123).

The spelling of 11011001112 in words is "eleven billion, eleven million, one thousand, one hundred twelve".