20013100171 has 2 divisors, whose sum is σ = 20013100172. Its totient is φ = 20013100170.

The previous prime is 20013100109. The next prime is 20013100181. The reversal of 20013100171 is 17100131002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013100171 - 2¹³ = 20013091979 is a prime.

It is not a weakly prime, because it can be changed into another prime (20013100181) 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 as a sum of consecutive naturals, namely, 10006550085 + 10006550086.

It is an arithmetic number, because the mean of its divisors is an integer number (10006550086).

Almost surely, 2^20013100171 is an apocalyptic number.

20013100171 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013100171 is an equidigital number, since it uses as much as digits as its factorization.

20013100171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 16.

Adding to 20013100171 its reverse (17100131002), we get a palindrome (37113231173).

The spelling of 20013100171 in words is "twenty billion, thirteen million, one hundred thousand, one hundred seventy-one".