113205020 has 24 divisors (see below), whose sum is σ = 241630368. Its totient is φ = 44539200.

The previous prime is 113205019. The next prime is 113205031. The reversal of 113205020 is 20502311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 113204986 and 113205004.

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, 45176 + ... + 47615.

It is an arithmetic number, because the mean of its divisors is an integer number (10067932).

Almost surely, 2^113205020 is an apocalyptic number.

113205020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113205020 is an abundant number, since it is smaller than the sum of its proper divisors (128425348).

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

113205020 is a wasteful number, since it uses less digits than its factorization.

113205020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92861 (or 92859 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 113205020 is about 10639.7847722593. The cubic root of 113205020 is about 483.7510216823.

Adding to 113205020 its reverse (20502311), we get a palindrome (133707331).

The spelling of 113205020 in words is "one hundred thirteen million, two hundred five thousand, twenty".