231012317 has 8 divisors (see below), whose sum is σ = 247293600. Its totient is φ = 215143344.

The previous prime is 231012283. The next prime is 231012367. The reversal of 231012317 is 713210132.

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 231012317 - 2²⁴ = 214235101 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 (231012367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101918 + ... + 104159.

It is an arithmetic number, because the mean of its divisors is an integer number (30911700).

Almost surely, 2^231012317 is an apocalyptic number.

It is an amenable number.

231012317 is a deficient number, since it is larger than the sum of its proper divisors (16281283).

231012317 is a wasteful number, since it uses less digits than its factorization.

231012317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206155.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 231012317 is about 15199.0893477208. The cubic root of 231012317 is about 613.5901491916.

Adding to 231012317 its reverse (713210132), we get a palindrome (944222449).

The spelling of 231012317 in words is "two hundred thirty-one million, twelve thousand, three hundred seventeen".