1201113020171 has 2 divisors, whose sum is σ = 1201113020172. Its totient is φ = 1201113020170.

The previous prime is 1201113020123. The next prime is 1201113020213. The reversal of 1201113020171 is 1710203111021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201113020171 - 2¹⁴ = 1201113003787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201110020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556510085 + 600556510086.

It is an arithmetic number, because the mean of its divisors is an integer number (600556510086).

Almost surely, 2^{1201113020171} is an apocalyptic number.

1201113020171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201113020171 is an equidigital number, since it uses as much as digits as its factorization.

1201113020171 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 20.

Adding to 1201113020171 its reverse (1710203111021), we get a palindrome (2911316131192).

The spelling of 1201113020171 in words is "one trillion, two hundred one billion, one hundred thirteen million, twenty thousand, one hundred seventy-one".