113031020 has 24 divisors (see below), whose sum is σ = 241390800. Its totient is φ = 44445632.

The previous prime is 113031013. The next prime is 113031031. The reversal of 113031020 is 20130311.

It is a super-2 number, since 2×113031020² = 25552022964480800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113030992 and 113031010.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 46715 + ... + 49074.

It is an arithmetic number, because the mean of its divisors is an integer number (10057950).

Almost surely, 2^113031020 is an apocalyptic number.

113031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113031020 is an abundant number, since it is smaller than the sum of its proper divisors (128359780).

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

113031020 is a wasteful number, since it uses less digits than its factorization.

113031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95857 (or 95855 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 113031020 is about 10631.6047706826. The cubic root of 113031020 is about 483.5030472843.

Adding to 113031020 its reverse (20130311), we get a palindrome (133161331).

The spelling of 113031020 in words is "one hundred thirteen million, thirty-one thousand, twenty".