203042112 has 112 divisors (see below), whose sum is σ = 661245312. Its totient is φ = 53544960.

The previous prime is 203042071. The next prime is 203042117. The reversal of 203042112 is 211240302.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 203042091 and 203042100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203042117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11662 + ... + 23282.

It is an arithmetic number, because the mean of its divisors is an integer number (5903976).

Almost surely, 2^203042112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203042112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330622656).

203042112 is an abundant number, since it is smaller than the sum of its proper divisors (458203200).

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

203042112 is a wasteful number, since it uses less digits than its factorization.

203042112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11656 (or 11646 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 203042112 is about 14249.2846136218. The cubic root of 203042112 is about 587.7537031319.

Adding to 203042112 its reverse (211240302), we get a palindrome (414282414).

The spelling of 203042112 in words is "two hundred three million, forty-two thousand, one hundred twelve".