204136056211 has 2 divisors, whose sum is σ = 204136056212. Its totient is φ = 204136056210.

The previous prime is 204136056199. The next prime is 204136056227. The reversal of 204136056211 is 112650631402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204136056211 - 2²¹ = 204133959059 is a prime.

It is not a weakly prime, because it can be changed into another prime (204136053211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102068028105 + 102068028106.

It is an arithmetic number, because the mean of its divisors is an integer number (102068028106).

Almost surely, 2^204136056211 is an apocalyptic number.

204136056211 is a deficient number, since it is larger than the sum of its proper divisors (1).

204136056211 is an equidigital number, since it uses as much as digits as its factorization.

204136056211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 204136056211 its reverse (112650631402), we get a palindrome (316786687613).

The spelling of 204136056211 in words is "two hundred four billion, one hundred thirty-six million, fifty-six thousand, two hundred eleven".