111011321112 has 64 divisors (see below), whose sum is σ = 286917024000. Its totient is φ = 35765193600.

The previous prime is 111011321093. The next prime is 111011321167. The reversal of 111011321112 is 211123110111.

It is a junction number, because it is equal to n+sod(n) for n = 111011321091 and 111011321100.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 279862 + ... + 548037.

It is an arithmetic number, because the mean of its divisors is an integer number (4483078500).

Almost surely, 2^111011321112 is an apocalyptic number.

111011321112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111011321112 is an abundant number, since it is smaller than the sum of its proper divisors (175905702888).

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

111011321112 is a wasteful number, since it uses less digits than its factorization.

111011321112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828096 (or 828092 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 111011321112 its reverse (211123110111), we get a palindrome (322134431223).

The spelling of 111011321112 in words is "one hundred eleven billion, eleven million, three hundred twenty-one thousand, one hundred twelve".