201231301103171 has 2 divisors, whose sum is σ = 201231301103172. Its totient is φ = 201231301103170.

The previous prime is 201231301103113. The next prime is 201231301103219. The reversal of 201231301103171 is 171301103132102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201231301103171 - 2²² = 201231296908867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201231301103171.

It is not a weakly prime, because it can be changed into another prime (201231301103111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615650551585 + 100615650551586.

It is an arithmetic number, because the mean of its divisors is an integer number (100615650551586).

Almost surely, 2^{201231301103171} is an apocalyptic number.

201231301103171 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231301103171 is an equidigital number, since it uses as much as digits as its factorization.

201231301103171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

Adding to 201231301103171 its reverse (171301103132102), we get a palindrome (372532404235273).

The spelling of 201231301103171 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred one million, one hundred three thousand, one hundred seventy-one".