203112042 has 32 divisors (see below), whose sum is σ = 466680192. Its totient is φ = 57729024.

The previous prime is 203112037. The next prime is 203112053. The reversal of 203112042 is 240211302.

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, 4423 + ... + 20634.

It is an arithmetic number, because the mean of its divisors is an integer number (14583756).

Almost surely, 2^203112042 is an apocalyptic number.

203112042 is an abundant number, since it is smaller than the sum of its proper divisors (263568150).

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

203112042 is a wasteful number, since it uses less digits than its factorization.

203112042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25262.

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

The square root of 203112042 is about 14251.7382097764. The cubic root of 203112042 is about 587.8211717280.

Adding to 203112042 its reverse (240211302), we get a palindrome (443323344).

The spelling of 203112042 in words is "two hundred three million, one hundred twelve thousand, forty-two".