203201021312 has 16 divisors (see below), whose sum is σ = 404814534900. Its totient is φ = 101600510592.

The previous prime is 203201021293. The next prime is 203201021329. The reversal of 203201021312 is 213120102302.

203201021312 is digitally balanced in base 2 and base 3, because in such bases 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 (16).

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 as a sum of consecutive naturals, namely, 793753862 + ... + 793754117.

Almost surely, 2^203201021312 is an apocalyptic number.

It is an amenable number.

203201021312 is a deficient number, since it is larger than the sum of its proper divisors (201613513588).

203201021312 is an equidigital number, since it uses as much as digits as its factorization.

203201021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587507993 (or 1587507981 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203201021312 its reverse (213120102302), we get a palindrome (416321123614).

The spelling of 203201021312 in words is "two hundred three billion, two hundred one million, twenty-one thousand, three hundred twelve".