112543020 has 192 divisors, whose sum is σ = 370298880. Its totient is φ = 28693440.

The previous prime is 112543019. The next prime is 112543021. The reversal of 112543020 is 20345211.

It is an interprime number because it is at equal distance from previous prime (112543019) and next prime (112543021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112542984 and 112543002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112543021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1355899 + ... + 1355981.

It is an arithmetic number, because the mean of its divisors is an integer number (1928640).

Almost surely, 2^112543020 is an apocalyptic number.

112543020 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 112543020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185149440).

112543020 is an abundant number, since it is smaller than the sum of its proper divisors (257755860).

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

112543020 is an equidigital number, since it uses as much as digits as its factorization.

112543020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 112543020 is about 10608.6295062086. The cubic root of 112543020 is about 482.8062183177.

Adding to 112543020 its reverse (20345211), we get a palindrome (132888231).

The spelling of 112543020 in words is "one hundred twelve million, five hundred forty-three thousand, twenty".