203555003412 has 48 divisors (see below), whose sum is σ = 478141880832. Its totient is φ = 67397925600.

The previous prime is 203555003321. The next prime is 203555003429. The reversal of 203555003412 is 214300555302.

203555003412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 203555003412.

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, 2872803 + ... + 2942805.

It is an arithmetic number, because the mean of its divisors is an integer number (9961289184).

Almost surely, 2^203555003412 is an apocalyptic number.

It is an amenable number.

203555003412 is an abundant number, since it is smaller than the sum of its proper divisors (274586877420).

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

203555003412 is a wasteful number, since it uses less digits than its factorization.

203555003412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71628 (or 71626 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 203555003412 its reverse (214300555302), we get a palindrome (417855558714).

The spelling of 203555003412 in words is "two hundred three billion, five hundred fifty-five million, three thousand, four hundred twelve".