200031317 has 2 divisors, whose sum is σ = 200031318. Its totient is φ = 200031316.

The previous prime is 200031311. The next prime is 200031323. The reversal of 200031317 is 713130002.

It is a balanced prime because it is at equal distance from previous prime (200031311) and next prime (200031323).

It can be written as a sum of positive squares in only one way, i.e., 197093521 + 2937796 = 14039^2 + 1714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200031317 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 200031295 and 200031304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200031311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100015658 + 100015659.

It is an arithmetic number, because the mean of its divisors is an integer number (100015659).

Almost surely, 2^200031317 is an apocalyptic number.

It is an amenable number.

200031317 is a deficient number, since it is larger than the sum of its proper divisors (1).

200031317 is an equidigital number, since it uses as much as digits as its factorization.

200031317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 200031317 is about 14143.2428035440. The cubic root of 200031317 is about 584.8340698707.

Adding to 200031317 its reverse (713130002), we get a palindrome (913161319).

The spelling of 200031317 in words is "two hundred million, thirty-one thousand, three hundred seventeen".