201151001171 has 16 divisors (see below), whose sum is σ = 205853054400. Its totient is φ = 196519564800.

The previous prime is 201151001167. The next prime is 201151001189. The reversal of 201151001171 is 171100151102.

201151001171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 201151001171 - 2² = 201151001167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201151001111) 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, 2267255 + ... + 2354303.

It is an arithmetic number, because the mean of its divisors is an integer number (12865815900).

Almost surely, 2^201151001171 is an apocalyptic number.

201151001171 is a deficient number, since it is larger than the sum of its proper divisors (4702053229).

201151001171 is a wasteful number, since it uses less digits than its factorization.

201151001171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87454.

The product of its (nonzero) digits is 70, while the sum is 20.

Adding to 201151001171 its reverse (171100151102), we get a palindrome (372251152273).

The spelling of 201151001171 in words is "two hundred one billion, one hundred fifty-one million, one thousand, one hundred seventy-one".