201320000171 has 2 divisors, whose sum is σ = 201320000172. Its totient is φ = 201320000170.

The previous prime is 201320000093. The next prime is 201320000191. The reversal of 201320000171 is 171000023102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201320000171 is a prime.

It is not a weakly prime, because it can be changed into another prime (201320000191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100660000085 + 100660000086.

It is an arithmetic number, because the mean of its divisors is an integer number (100660000086).

Almost surely, 2^201320000171 is an apocalyptic number.

201320000171 is a deficient number, since it is larger than the sum of its proper divisors (1).

201320000171 is an equidigital number, since it uses as much as digits as its factorization.

201320000171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 201320000171 its reverse (171000023102), we get a palindrome (372320023273).

The spelling of 201320000171 in words is "two hundred one billion, three hundred twenty million, one hundred seventy-one", and thus it is an aban number.