113100020 has 48 divisors (see below), whose sum is σ = 263003328. Its totient is φ = 40508160.

The previous prime is 113100007. The next prime is 113100047. The reversal of 113100020 is 20001311.

It is a super-2 number, since 2×113100020² = 25583229048000800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113099980 and 113100007.

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, 10904 + ... + 18576.

It is an arithmetic number, because the mean of its divisors is an integer number (5479236).

Almost surely, 2^113100020 is an apocalyptic number.

113100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131501664).

113100020 is an abundant number, since it is smaller than the sum of its proper divisors (149903308).

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

113100020 is a wasteful number, since it uses less digits than its factorization.

113100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760 (or 7758 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 113100020 is about 10634.8493172212. The cubic root of 113100020 is about 483.6014123880.

Adding to 113100020 its reverse (20001311), we get a palindrome (133101331).

The spelling of 113100020 in words is "one hundred thirteen million, one hundred thousand, twenty".