1210247317 has 2 divisors, whose sum is σ = 1210247318. Its totient is φ = 1210247316.

The previous prime is 1210247303. The next prime is 1210247329. The reversal of 1210247317 is 7137420121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 933058116 + 277189201 = 30546^2 + 16649^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210247317 - 2²⁷ = 1076029589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210247377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605123658 + 605123659.

It is an arithmetic number, because the mean of its divisors is an integer number (605123659).

Almost surely, 2^1210247317 is an apocalyptic number.

It is an amenable number.

1210247317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210247317 is an equidigital number, since it uses as much as digits as its factorization.

1210247317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1210247317 is about 34788.6090121465. The cubic root of 1210247317 is about 1065.6748327983.

Adding to 1210247317 its reverse (7137420121), we get a palindrome (8347667438).

The spelling of 1210247317 in words is "one billion, two hundred ten million, two hundred forty-seven thousand, three hundred seventeen".