231017 has 2 divisors, whose sum is σ = 231018. Its totient is φ = 231016.

The previous prime is 231001. The next prime is 231019. The reversal of 231017 is 710132.

231017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212521 + 18496 = 461^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 231017 - 2⁴ = 231001 is a prime.

Together with 231019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230992 and 231010.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231017.

It is not a weakly prime, because it can be changed into another prime (231019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115508 + 115509.

It is an arithmetic number, because the mean of its divisors is an integer number (115509).

2²³¹⁰¹⁷ is an apocalyptic number.

It is an amenable number.

231017 is a deficient number, since it is larger than the sum of its proper divisors (1).

231017 is an equidigital number, since it uses as much as digits as its factorization.

231017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 231017 is about 480.6422786231. The cubic root of 231017 is about 61.3594295324.

Adding to 231017 its reverse (710132), we get a palindrome (941149).

The spelling of 231017 in words is "two hundred thirty-one thousand, seventeen".