201071105205 has 16 divisors (see below), whose sum is σ = 321720786240. Its totient is φ = 107235583488.

The previous prime is 201071105203. The next prime is 201071105219. The reversal of 201071105205 is 502501170102.

201071105205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201071105205 - 2¹ = 201071105203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201071105203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736101 + ... + 971589.

It is an arithmetic number, because the mean of its divisors is an integer number (20107549140).

Almost surely, 2^201071105205 is an apocalyptic number.

It is an amenable number.

201071105205 is a deficient number, since it is larger than the sum of its proper divisors (120649681035).

201071105205 is a wasteful number, since it uses less digits than its factorization.

201071105205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292420.

The product of its (nonzero) digits is 700, while the sum is 24.

Adding to 201071105205 its reverse (502501170102), we get a palindrome (703572275307).

The spelling of 201071105205 in words is "two hundred one billion, seventy-one million, one hundred five thousand, two hundred five".