203413004214421 has 4 divisors (see below), whose sum is σ = 203424094849644. Its totient is φ = 203401913579200.

The previous prime is 203413004214361. The next prime is 203413004214463. The reversal of 203413004214421 is 124412400314302.

It is a happy number.

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 26823190750321 + 176589813464100 = 5179111^2 + 13288710^2 .

It is a cyclic number.

It is not a de Polignac number, because 203413004214421 - 2¹⁹ = 203413003690133 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 (203413004214481) 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 3 ways as a sum of consecutive naturals, for example, 5545290100 + ... + 5545326781.

It is an arithmetic number, because the mean of its divisors is an integer number (50856023712411).

Almost surely, 2^{203413004214421} is an apocalyptic number.

It is an amenable number.

203413004214421 is a deficient number, since it is larger than the sum of its proper divisors (11090635223).

203413004214421 is a wasteful number, since it uses less digits than its factorization.

203413004214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090635222.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 203413004214421 its reverse (124412400314302), we get a palindrome (327825404528723).

The spelling of 203413004214421 in words is "two hundred three trillion, four hundred thirteen billion, four million, two hundred fourteen thousand, four hundred twenty-one".