204021041213 has 16 divisors (see below), whose sum is σ = 227467024512. Its totient is φ = 181425096000.

The previous prime is 204021041207. The next prime is 204021041227. The reversal of 204021041213 is 312140120402.

It is a cyclic number.

It is not a de Polignac number, because 204021041213 - 2⁴ = 204021041197 is a prime.

It is a super-2 number, since 2×204021041213² (a number of 23 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 (204021041243) 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, 718481 + ... + 961382.

It is an arithmetic number, because the mean of its divisors is an integer number (14216689032).

Almost surely, 2^204021041213 is an apocalyptic number.

It is an amenable number.

204021041213 is a deficient number, since it is larger than the sum of its proper divisors (23445983299).

204021041213 is a wasteful number, since it uses less digits than its factorization.

204021041213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680116.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 204021041213 its reverse (312140120402), we get a palindrome (516161161615).

The spelling of 204021041213 in words is "two hundred four billion, twenty-one million, forty-one thousand, two hundred thirteen".