204201054011 has 4 divisors (see below), whose sum is σ = 205553379024. Its totient is φ = 202848729000.

The previous prime is 204201054007. The next prime is 204201054017. The reversal of 204201054011 is 110450102402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204201054011 - 2² = 204201054007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204201054017) 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, 676162280 + ... + 676162581.

It is an arithmetic number, because the mean of its divisors is an integer number (51388344756).

Almost surely, 2^204201054011 is an apocalyptic number.

204201054011 is a deficient number, since it is larger than the sum of its proper divisors (1352325013).

204201054011 is a wasteful number, since it uses less digits than its factorization.

204201054011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352325012.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 204201054011 its reverse (110450102402), we get a palindrome (314651156413).

The spelling of 204201054011 in words is "two hundred four billion, two hundred one million, fifty-four thousand, eleven".