113112132012 has 144 divisors (see below), whose sum is σ = 322340788224. Its totient is φ = 33133248000.

The previous prime is 113112131983. The next prime is 113112132113. The reversal of 113112132012 is 210231211311.

113112132012 is a `hidden beast` number, since 1 + 1 + 311 + 21 + 320 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11988937 + ... + 11998367.

It is an arithmetic number, because the mean of its divisors is an integer number (2238477696).

Almost surely, 2^113112132012 is an apocalyptic number.

113112132012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113112132012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161170394112).

113112132012 is an abundant number, since it is smaller than the sum of its proper divisors (209228656212).

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

113112132012 is a wasteful number, since it uses less digits than its factorization.

113112132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10460 (or 10455 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 113112132012 its reverse (210231211311), we get a palindrome (323343343323).

The spelling of 113112132012 in words is "one hundred thirteen billion, one hundred twelve million, one hundred thirty-two thousand, twelve".