171347311427 has 4 divisors (see below), whose sum is σ = 171705030720. Its totient is φ = 170989592136.

The previous prime is 171347311409. The next prime is 171347311433. The reversal of 171347311427 is 724113743171.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 171347311427 - 2³⁰ = 170273569603 is a prime.

It is a super-3 number, since 3×171347311427³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171347311027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178858928 + ... + 178859885.

It is an arithmetic number, because the mean of its divisors is an integer number (42926257680).

Almost surely, 2^171347311427 is an apocalyptic number.

171347311427 is a deficient number, since it is larger than the sum of its proper divisors (357719293).

171347311427 is an equidigital number, since it uses as much as digits as its factorization.

171347311427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357719292.

The product of its digits is 98784, while the sum is 41.

The spelling of 171347311427 in words is "one hundred seventy-one billion, three hundred forty-seven million, three hundred eleven thousand, four hundred twenty-seven".