204143054013 has 6 divisors (see below), whose sum is σ = 294873300254. Its totient is φ = 136095369336.

The previous prime is 204143053979. The next prime is 204143054029. The reversal of 204143054013 is 310450341402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 172525591044 + 31617462969 = 415362^2 + 177813^2 .

It is not a de Polignac number, because 204143054013 - 2⁹ = 204143053501 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 (204143054083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11341280770 + ... + 11341280787.

Almost surely, 2^204143054013 is an apocalyptic number.

It is an amenable number.

204143054013 is a deficient number, since it is larger than the sum of its proper divisors (90730246241).

204143054013 is a wasteful number, since it uses less digits than its factorization.

204143054013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22682561563 (or 22682561560 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 204143054013 its reverse (310450341402), we get a palindrome (514593395415).

The spelling of 204143054013 in words is "two hundred four billion, one hundred forty-three million, fifty-four thousand, thirteen".