120111002002171 has 2 divisors, whose sum is σ = 120111002002172. Its totient is φ = 120111002002170.

The previous prime is 120111002002063. The next prime is 120111002002231. The reversal of 120111002002171 is 171200200111021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120111002002171 - 2¹³ = 120111001993979 is a prime.

It is not a weakly prime, because it can be changed into another prime (120111002002571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055501001085 + 60055501001086.

It is an arithmetic number, because the mean of its divisors is an integer number (60055501001086).

Almost surely, 2^{120111002002171} is an apocalyptic number.

120111002002171 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111002002171 is an equidigital number, since it uses as much as digits as its factorization.

120111002002171 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 19.

Adding to 120111002002171 its reverse (171200200111021), we get a palindrome (291311202113192).

The spelling of 120111002002171 in words is "one hundred twenty trillion, one hundred eleven billion, two million, two thousand, one hundred seventy-one".