203230221 has 8 divisors (see below), whose sum is σ = 271592640. Its totient is φ = 135177312.

The previous prime is 203230211. The next prime is 203230253. The reversal of 203230221 is 122032302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203230221 - 2¹¹ = 203228173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203230221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75840 + ... + 78473.

It is an arithmetic number, because the mean of its divisors is an integer number (33949080).

Almost surely, 2^203230221 is an apocalyptic number.

It is an amenable number.

203230221 is a deficient number, since it is larger than the sum of its proper divisors (68362419).

203230221 is a wasteful number, since it uses less digits than its factorization.

203230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154755.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 203230221 is about 14255.8837326909. The cubic root of 203230221 is about 587.9351558601.

Adding to 203230221 its reverse (122032302), we get a palindrome (325262523).

The spelling of 203230221 in words is "two hundred three million, two hundred thirty thousand, two hundred twenty-one".