203030330221 has 8 divisors (see below), whose sum is σ = 209585021184. Its totient is φ = 196475972160.

The previous prime is 203030330213. The next prime is 203030330263. The reversal of 203030330221 is 122033030302.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 203030330221 - 2³ = 203030330213 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 (203030330821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928286 + ... + 2030848.

It is an arithmetic number, because the mean of its divisors is an integer number (26198127648).

Almost surely, 2^203030330221 is an apocalyptic number.

It is an amenable number.

203030330221 is a deficient number, since it is larger than the sum of its proper divisors (6554690963).

203030330221 is a wasteful number, since it uses less digits than its factorization.

203030330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166451.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 203030330221 its reverse (122033030302), we get a palindrome (325063360523).

The spelling of 203030330221 in words is "two hundred three billion, thirty million, three hundred thirty thousand, two hundred twenty-one".