113122231112 has 48 divisors (see below), whose sum is σ = 233289745920. Its totient is φ = 51386017760.

The previous prime is 113122231111. The next prime is 113122231129. The reversal of 113122231112 is 211132221311.

It is not an unprimeable number, because it can be changed into a prime (113122231111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1495433 + ... + 1569255.

It is an arithmetic number, because the mean of its divisors is an integer number (4860203040).

Almost surely, 2^113122231112 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 113122231112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116644872960).

113122231112 is an abundant number, since it is smaller than the sum of its proper divisors (120167514808).

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

113122231112 is a wasteful number, since it uses less digits than its factorization.

113122231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75434 (or 75419 counting only the distinct ones).

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

Adding to 113122231112 its reverse (211132221311), we get a palindrome (324254452423).

The spelling of 113122231112 in words is "one hundred thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred twelve".