204421030014413 has 4 divisors (see below), whose sum is σ = 204422480186460. Its totient is φ = 204419579842368.

The previous prime is 204421030014403. The next prime is 204421030014431. The reversal of 204421030014413 is 314410030124402.

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 11237633698564 + 193183396315849 = 3352258^2 + 13899043^2 .

It is a cyclic number.

It is not a de Polignac number, because 204421030014413 - 2²⁰ = 204421028965837 is a prime.

It is a super-2 number, since 2×204421030014413² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204421030014403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724874558 + ... + 725156511.

It is an arithmetic number, because the mean of its divisors is an integer number (51105620046615).

Almost surely, 2^{204421030014413} is an apocalyptic number.

It is an amenable number.

204421030014413 is a deficient number, since it is larger than the sum of its proper divisors (1450172047).

204421030014413 is a wasteful number, since it uses less digits than its factorization.

204421030014413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450172046.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 204421030014413 its reverse (314410030124402), we get a palindrome (518831060138815).

The spelling of 204421030014413 in words is "two hundred four trillion, four hundred twenty-one billion, thirty million, fourteen thousand, four hundred thirteen".