102100120211171 has 2 divisors, whose sum is σ = 102100120211172. Its totient is φ = 102100120211170.

The previous prime is 102100120211153. The next prime is 102100120211183. The reversal of 102100120211171 is 171112021001201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102100120211171 is a prime.

It is not a weakly prime, because it can be changed into another prime (102100120219171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050060105585 + 51050060105586.

It is an arithmetic number, because the mean of its divisors is an integer number (51050060105586).

Almost surely, 2^{102100120211171} is an apocalyptic number.

102100120211171 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100120211171 is an equidigital number, since it uses as much as digits as its factorization.

102100120211171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 102100120211171 its reverse (171112021001201), we get a palindrome (273212141212372).

The spelling of 102100120211171 in words is "one hundred two trillion, one hundred billion, one hundred twenty million, two hundred eleven thousand, one hundred seventy-one".