171347311441 has 2 divisors, whose sum is σ = 171347311442. Its totient is φ = 171347311440.

The previous prime is 171347311433. The next prime is 171347311519. The reversal of 171347311441 is 144113743171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158460521041 + 12886790400 = 398071^2 + 113520^2 .

It is an emirp because it is prime and its reverse (144113743171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171347311441 - 2³ = 171347311433 is a prime.

It is a super-2 number, since 2×171347311441² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 171347311441.

It is not a weakly prime, because it can be changed into another prime (171347311841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85673655720 + 85673655721.

It is an arithmetic number, because the mean of its divisors is an integer number (85673655721).

Almost surely, 2^171347311441 is an apocalyptic number.

It is an amenable number.

171347311441 is a deficient number, since it is larger than the sum of its proper divisors (1).

171347311441 is an equidigital number, since it uses as much as digits as its factorization.

171347311441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The spelling of 171347311441 in words is "one hundred seventy-one billion, three hundred forty-seven million, three hundred eleven thousand, four hundred forty-one".