203040112 has 80 divisors (see below), whose sum is σ = 460684800. Its totient is φ = 85662720.

The previous prime is 203040091. The next prime is 203040121. The reversal of 203040112 is 211040302.

It is a junction number, because it is equal to n+sod(n) for n = 203040092 and 203040101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235939 + ... + 236797.

It is an arithmetic number, because the mean of its divisors is an integer number (5758560).

Almost surely, 2^203040112 is an apocalyptic number.

203040112 is a gapful number since it is divisible by the number (22) 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 203040112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230342400).

203040112 is an abundant number, since it is smaller than the sum of its proper divisors (257644688).

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

203040112 is a wasteful number, since it uses less digits than its factorization.

203040112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 203040112 is about 14249.2144344873. The cubic root of 203040112 is about 587.7517733003.

Adding to 203040112 its reverse (211040302), we get a palindrome (414080414).

The spelling of 203040112 in words is "two hundred three million, forty thousand, one hundred twelve".