113305020 has 48 divisors (see below), whose sum is σ = 318947328. Its totient is φ = 30053440.

The previous prime is 113305013. The next prime is 113305057. The reversal of 113305020 is 20503311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6517 + ... + 16403.

It is an arithmetic number, because the mean of its divisors is an integer number (6644736).

Almost surely, 2^113305020 is an apocalyptic number.

113305020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113305020 is an abundant number, since it is smaller than the sum of its proper divisors (205642308).

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

113305020 is a wasteful number, since it uses less digits than its factorization.

113305020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090 (or 10088 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 113305020 is about 10644.4830781020. The cubic root of 113305020 is about 483.8934207416.

Adding to 113305020 its reverse (20503311), we get a palindrome (133808331).

The spelling of 113305020 in words is "one hundred thirteen million, three hundred five thousand, twenty".