113205012 has 12 divisors (see below), whose sum is σ = 264145056. Its totient is φ = 37735000.

The previous prime is 113204981. The next prime is 113205017. The reversal of 113205012 is 210502311.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 113204982 and 113205000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113205017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4716864 + ... + 4716887.

It is an arithmetic number, because the mean of its divisors is an integer number (22012088).

Almost surely, 2^113205012 is an apocalyptic number.

113205012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113205012 is an abundant number, since it is smaller than the sum of its proper divisors (150940044).

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

113205012 is a wasteful number, since it uses less digits than its factorization.

113205012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433758 (or 9433756 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 113205012 is about 10639.7843963118. The cubic root of 113205012 is about 483.7510102871.

Adding to 113205012 its reverse (210502311), we get a palindrome (323707323).

It can be divided in two parts, 11 and 3205012, that added together give a palindrome (3205023).

The spelling of 113205012 in words is "one hundred thirteen million, two hundred five thousand, twelve".