204423213404013 has 16 divisors (see below), whose sum is σ = 273057857357376. Its totient is φ = 136035490032000.

The previous prime is 204423213404009. The next prime is 204423213404083. The reversal of 204423213404013 is 310404312324402.

It is not a de Polignac number, because 204423213404013 - 2² = 204423213404009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204423213404083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10674631 + ... + 22864692.

It is an arithmetic number, because the mean of its divisors is an integer number (17066116084836).

Almost surely, 2^{204423213404013} is an apocalyptic number.

It is an amenable number.

204423213404013 is a deficient number, since it is larger than the sum of its proper divisors (68634643953363).

204423213404013 is a wasteful number, since it uses less digits than its factorization.

204423213404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33543004.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 204423213404013 its reverse (310404312324402), we get a palindrome (514827525728415).

The spelling of 204423213404013 in words is "two hundred four trillion, four hundred twenty-three billion, two hundred thirteen million, four hundred four thousand, thirteen".