113231113112 has 64 divisors (see below), whose sum is σ = 236147788800. Its totient is φ = 50546286720.

The previous prime is 113231113069. The next prime is 113231113133. The reversal of 113231113112 is 211311132311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6371423 + ... + 6389169.

It is an arithmetic number, because the mean of its divisors is an integer number (3689809200).

Almost surely, 2^113231113112 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 113231113112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118073894400).

113231113112 is an abundant number, since it is smaller than the sum of its proper divisors (122916675688).

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

113231113112 is a wasteful number, since it uses less digits than its factorization.

113231113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19776 (or 19772 counting only the distinct ones).

The product of its digits is 108, while the sum is 20.

Adding to 113231113112 its reverse (211311132311), we get a palindrome (324542245423).

The spelling of 113231113112 in words is "one hundred thirteen billion, two hundred thirty-one million, one hundred thirteen thousand, one hundred twelve".