317012243 has 12 divisors (see below), whose sum is σ = 350898408. Its totient is φ = 285384000.

The previous prime is 317012237. The next prime is 317012273. The reversal of 317012243 is 342210713.

It is not a de Polignac number, because 317012243 - 2²⁰ = 315963667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317012273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8633 + ... + 26618.

It is an arithmetic number, because the mean of its divisors is an integer number (29241534).

Almost surely, 2^317012243 is an apocalyptic number.

317012243 is a deficient number, since it is larger than the sum of its proper divisors (33886165).

317012243 is a wasteful number, since it uses less digits than its factorization.

317012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35314 (or 35291 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 317012243 is about 17804.8376291389. The cubic root of 317012243 is about 681.8549719854.

Adding to 317012243 its reverse (342210713), we get a palindrome (659222956).

The spelling of 317012243 in words is "three hundred seventeen million, twelve thousand, two hundred forty-three".