113112223112 has 96 divisors (see below), whose sum is σ = 257166235200. Its totient is φ = 45676109952.

The previous prime is 113112223109. The next prime is 113112223141. The reversal of 113112223112 is 211322211311.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1956314 + ... + 2013302.

It is an arithmetic number, because the mean of its divisors is an integer number (2678814950).

Almost surely, 2^113112223112 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 113112223112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128583117600).

113112223112 is an abundant number, since it is smaller than the sum of its proper divisors (144054012088).

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

113112223112 is a wasteful number, since it uses less digits than its factorization.

113112223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57115 (or 57088 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 113112223112 its reverse (211322211311), we get a palindrome (324434434423).

The spelling of 113112223112 in words is "one hundred thirteen billion, one hundred twelve million, two hundred twenty-three thousand, one hundred twelve".