203021201033 has 12 divisors (see below), whose sum is σ = 237671780292. Its totient is φ = 172909769760.

The previous prime is 203021201023. The next prime is 203021201041. The reversal of 203021201033 is 330102120302.

It can be written as a sum of positive squares in 2 ways, for example, as 107028431104 + 95992769929 = 327152^2 + 309827^2 .

It is not a de Polignac number, because 203021201033 - 2⁴ = 203021201017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203021201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13187498 + ... + 13202883.

It is an arithmetic number, because the mean of its divisors is an integer number (19805981691).

Almost surely, 2^203021201033 is an apocalyptic number.

It is an amenable number.

203021201033 is a deficient number, since it is larger than the sum of its proper divisors (34650579259).

203021201033 is a wasteful number, since it uses less digits than its factorization.

203021201033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26390552 (or 26390545 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203021201033 its reverse (330102120302), we get a palindrome (533123321335).

The spelling of 203021201033 in words is "two hundred three billion, twenty-one million, two hundred one thousand, thirty-three".