203133013221 has 8 divisors (see below), whose sum is σ = 272340394144. Its totient is φ = 134673820560.

The previous prime is 203133013219. The next prime is 203133013267. The reversal of 203133013221 is 122310331302.

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

It is not a de Polignac number, because 203133013221 - 2¹ = 203133013219 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 (203133013211) 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, 187046431 + ... + 187047516.

It is an arithmetic number, because the mean of its divisors is an integer number (34042549268).

Almost surely, 2^203133013221 is an apocalyptic number.

It is an amenable number.

203133013221 is a deficient number, since it is larger than the sum of its proper divisors (69207380923).

203133013221 is a wasteful number, since it uses less digits than its factorization.

203133013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374094131.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203133013221 its reverse (122310331302), we get a palindrome (325443344523).

The spelling of 203133013221 in words is "two hundred three billion, one hundred thirty-three million, thirteen thousand, two hundred twenty-one".