203040413221 has 4 divisors (see below), whose sum is σ = 205050714444. Its totient is φ = 201030112000.

The previous prime is 203040413201. The next prime is 203040413249. The reversal of 203040413221 is 122314040302.

203040413221 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 200860830625 + 2179582596 = 448175^2 + 46686^2 .

It is a cyclic number.

It is not a de Polignac number, because 203040413221 - 2¹⁵ = 203040380453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203040413192 and 203040413201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203040413201) 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, 1005150460 + ... + 1005150661.

It is an arithmetic number, because the mean of its divisors is an integer number (51262678611).

Almost surely, 2^203040413221 is an apocalyptic number.

It is an amenable number.

203040413221 is a deficient number, since it is larger than the sum of its proper divisors (2010301223).

203040413221 is a wasteful number, since it uses less digits than its factorization.

203040413221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010301222.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 203040413221 its reverse (122314040302), we get a palindrome (325354453523).

The spelling of 203040413221 in words is "two hundred three billion, forty million, four hundred thirteen thousand, two hundred twenty-one".