113113212 has 24 divisors (see below), whose sum is σ = 264378576. Its totient is φ = 37640448.

The previous prime is 113113199. The next prime is 113113243. The reversal of 113113212 is 212311311.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 113113191 and 113113200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333 + ... + 15044.

It is an arithmetic number, because the mean of its divisors is an integer number (11015774).

Almost surely, 2^113113212 is an apocalyptic number.

113113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113113212 is an abundant number, since it is smaller than the sum of its proper divisors (151265364).

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

113113212 is a wasteful number, since it uses less digits than its factorization.

113113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15997 (or 15995 counting only the distinct ones).

The product of its digits is 36, while the sum is 15.

The square root of 113113212 is about 10635.4695241912. The cubic root of 113113212 is about 483.6202140994.

Adding to 113113212 its reverse (212311311), we get a palindrome (325424523).

The spelling of 113113212 in words is "one hundred thirteen million, one hundred thirteen thousand, two hundred twelve".