11031220112 has 80 divisors (see below), whose sum is σ = 23527065600. Its totient is φ = 4969019520.

The previous prime is 11031220099. The next prime is 11031220163. The reversal of 11031220112 is 21102213011.

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, 15342089 + ... + 15342807.

It is an arithmetic number, because the mean of its divisors is an integer number (294088320).

Almost surely, 2^11031220112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11031220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11763532800).

11031220112 is an abundant number, since it is smaller than the sum of its proper divisors (12495845488).

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

11031220112 is a wasteful number, since it uses less digits than its factorization.

11031220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11031220112 its reverse (21102213011), we get a palindrome (32133433123).

The spelling of 11031220112 in words is "eleven billion, thirty-one million, two hundred twenty thousand, one hundred twelve".