203431242112 has 128 divisors (see below), whose sum is σ = 470047775040. Its totient is φ = 85892825088.

The previous prime is 203431242073. The next prime is 203431242149. The reversal of 203431242112 is 211242134302.

203431242112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108380118 + ... + 108381994.

Almost surely, 2^203431242112 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 203431242112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235023887520).

203431242112 is an abundant number, since it is smaller than the sum of its proper divisors (266616532928).

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

203431242112 is a wasteful number, since it uses less digits than its factorization.

203431242112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628 (or 3616 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 203431242112 its reverse (211242134302), we get a palindrome (414673376414).

The spelling of 203431242112 in words is "two hundred three billion, four hundred thirty-one million, two hundred forty-two thousand, one hundred twelve".