11123110212 has 24 divisors (see below), whose sum is σ = 26443622016. Its totient is φ = 3637746528.

The previous prime is 11123110171. The next prime is 11123110231. The reversal of 11123110212 is 21201132111.

11123110212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11123110191 and 11123110200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8743948 + ... + 8745219.

It is an arithmetic number, because the mean of its divisors is an integer number (1101817584).

Almost surely, 2^11123110212 is an apocalyptic number.

11123110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11123110212 is an abundant number, since it is smaller than the sum of its proper divisors (15320511804).

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

11123110212 is a wasteful number, since it uses less digits than its factorization.

11123110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17489227 (or 17489225 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11123110212 its reverse (21201132111), we get a palindrome (32324242323).

The spelling of 11123110212 in words is "eleven billion, one hundred twenty-three million, one hundred ten thousand, two hundred twelve".