171315124271213 has 8 divisors (see below), whose sum is σ = 184493393332248. Its totient is φ = 158136881292864.

The previous prime is 171315124271129. The next prime is 171315124271219. The reversal of 171315124271213 is 312172421513171.

It can be written as a sum of positive squares in 4 ways, for example, as 2382015650884 + 168933108620329 = 1543378^2 + 12997427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171315124271213 - 2⁸ = 171315124270957 is a prime.

It is a super-2 number, since 2×171315124271213² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171315124271219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8382431 + ... + 20319827.

It is an arithmetic number, because the mean of its divisors is an integer number (23061674166531).

Almost surely, 2^{171315124271213} is an apocalyptic number.

171315124271213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

171315124271213 is a deficient number, since it is larger than the sum of its proper divisors (13178269061035).

171315124271213 is a wasteful number, since it uses less digits than its factorization.

171315124271213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041343.

The product of its digits is 70560, while the sum is 41.

Adding to 171315124271213 its reverse (312172421513171), we get a palindrome (483487545784384).

The spelling of 171315124271213 in words is "one hundred seventy-one trillion, three hundred fifteen billion, one hundred twenty-four million, two hundred seventy-one thousand, two hundred thirteen".