1310230517 has 2 divisors, whose sum is σ = 1310230518. Its totient is φ = 1310230516.

The previous prime is 1310230513. The next prime is 1310230547. The reversal of 1310230517 is 7150320131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1140345361 + 169885156 = 33769^2 + 13034^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310230517 - 2² = 1310230513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310230492 and 1310230501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310230513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655115258 + 655115259.

It is an arithmetic number, because the mean of its divisors is an integer number (655115259).

Almost surely, 2^1310230517 is an apocalyptic number.

It is an amenable number.

1310230517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310230517 is an equidigital number, since it uses as much as digits as its factorization.

1310230517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1310230517 is about 36197.1064727555. The cubic root of 1310230517 is about 1094.2483577660.

Adding to 1310230517 its reverse (7150320131), we get a palindrome (8460550648).

The spelling of 1310230517 in words is "one billion, three hundred ten million, two hundred thirty thousand, five hundred seventeen".