203021320201 has 12 divisors (see below), whose sum is σ = 236211137280. Its totient is φ = 173986237320.

The previous prime is 203021320199. The next prime is 203021320213. The reversal of 203021320201 is 102023120302.

It is not a de Polignac number, because 203021320201 - 2¹ = 203021320199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203021320261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110581 + ... + 646738.

It is an arithmetic number, because the mean of its divisors is an integer number (19684261440).

Almost surely, 2^203021320201 is an apocalyptic number.

It is an amenable number.

203021320201 is a deficient number, since it is larger than the sum of its proper divisors (33189817079).

203021320201 is an equidigital number, since it uses as much as digits as its factorization.

203021320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762804 (or 762797 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203021320201 its reverse (102023120302), we get a palindrome (305044440503).

The spelling of 203021320201 in words is "two hundred three billion, twenty-one million, three hundred twenty thousand, two hundred one".