317231563 has 4 divisors (see below), whose sum is σ = 346070808. Its totient is φ = 288392320.

The previous prime is 317231513. The next prime is 317231633. The reversal of 317231563 is 365132713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365132713 = 11 ⋅33193883.

It is a cyclic number.

It is not a de Polignac number, because 317231563 - 2⁹ = 317231051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317231503) 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, 14419606 + ... + 14419627.

It is an arithmetic number, because the mean of its divisors is an integer number (86517702).

Almost surely, 2^317231563 is an apocalyptic number.

317231563 is a deficient number, since it is larger than the sum of its proper divisors (28839245).

317231563 is a wasteful number, since it uses less digits than its factorization.

317231563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28839244.

The product of its digits is 11340, while the sum is 31.

The square root of 317231563 is about 17810.9955645382. The cubic root of 317231563 is about 682.0121793303.

The spelling of 317231563 in words is "three hundred seventeen million, two hundred thirty-one thousand, five hundred sixty-three".