12811743171 has 6 divisors (see below), whose sum is σ = 18505851260. Its totient is φ = 8541162108.

The previous prime is 12811743137. The next prime is 12811743223. The reversal of 12811743171 is 17134711821.

It is not a de Polignac number, because 12811743171 - 2⁹ = 12811742659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12811743121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 711763501 + ... + 711763518.

Almost surely, 2^12811743171 is an apocalyptic number.

12811743171 is a deficient number, since it is larger than the sum of its proper divisors (5694108089).

12811743171 is a wasteful number, since it uses less digits than its factorization.

12811743171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423527025 (or 1423527022 counting only the distinct ones).

The product of its digits is 9408, while the sum is 36.

The spelling of 12811743171 in words is "twelve billion, eight hundred eleven million, seven hundred forty-three thousand, one hundred seventy-one".