231032017 has 2 divisors, whose sum is σ = 231032018. Its totient is φ = 231032016.

The previous prime is 231031973. The next prime is 231032041. The reversal of 231032017 is 710230132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199402641 + 31629376 = 14121^2 + 5624^2 .

It is a cyclic number.

It is not a de Polignac number, because 231032017 - 2¹⁹ = 230507729 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 231031985 and 231032003.

It is not a weakly prime, because it can be changed into another prime (231032617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115516008 + 115516009.

It is an arithmetic number, because the mean of its divisors is an integer number (115516009).

Almost surely, 2^231032017 is an apocalyptic number.

It is an amenable number.

231032017 is a deficient number, since it is larger than the sum of its proper divisors (1).

231032017 is an equidigital number, since it uses as much as digits as its factorization.

231032017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 231032017 is about 15199.7373990474. The cubic root of 231032017 is about 613.6075903718.

Adding to 231032017 its reverse (710230132), we get a palindrome (941262149).

The spelling of 231032017 in words is "two hundred thirty-one million, thirty-two thousand, seventeen".