203000234221 has 4 divisors (see below), whose sum is σ = 203018126332. Its totient is φ = 202982342112.

The previous prime is 203000234191. The next prime is 203000234231. The reversal of 203000234221 is 122432000302.

203000234221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30558536100 + 172441698121 = 174810^2 + 415261^2 .

It is a cyclic number.

It is not a de Polignac number, because 203000234221 - 2³⁵ = 168640495853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203000234231) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8929026 + ... + 8951731.

It is an arithmetic number, because the mean of its divisors is an integer number (50754531583).

Almost surely, 2^203000234221 is an apocalyptic number.

It is an amenable number.

203000234221 is a deficient number, since it is larger than the sum of its proper divisors (17892111).

203000234221 is a wasteful number, since it uses less digits than its factorization.

203000234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17892110.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 203000234221 its reverse (122432000302), we get a palindrome (325432234523).

The spelling of 203000234221 in words is "two hundred three billion, two hundred thirty-four thousand, two hundred twenty-one".