231317671 has 4 divisors (see below), whose sum is σ = 249111352. Its totient is φ = 213523992.

The previous prime is 231317663. The next prime is 231317687. The reversal of 231317671 is 176713132.

231317671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231317671 - 2³ = 231317663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231317651) 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, 8896821 + ... + 8896846.

It is an arithmetic number, because the mean of its divisors is an integer number (62277838).

Almost surely, 2^231317671 is an apocalyptic number.

231317671 is a deficient number, since it is larger than the sum of its proper divisors (17793681).

231317671 is a wasteful number, since it uses less digits than its factorization.

231317671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17793680.

The product of its digits is 5292, while the sum is 31.

The square root of 231317671 is about 15209.1311717665. The cubic root of 231317671 is about 613.8603796814.

The spelling of 231317671 in words is "two hundred thirty-one million, three hundred seventeen thousand, six hundred seventy-one".