1031230313 has 2 divisors, whose sum is σ = 1031230314. Its totient is φ = 1031230312.

The previous prime is 1031230307. The next prime is 1031230331. The reversal of 1031230313 is 3130321301.

Together with next prime (1031230331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992691049 + 38539264 = 31507^2 + 6208^2 .

It is an emirp because it is prime and its reverse (3130321301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1031230313 - 2¹⁶ = 1031164777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031230291 and 1031230300.

It is not a weakly prime, because it can be changed into another prime (1031230363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515615156 + 515615157.

It is an arithmetic number, because the mean of its divisors is an integer number (515615157).

Almost surely, 2^1031230313 is an apocalyptic number.

It is an amenable number.

1031230313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031230313 is an equidigital number, since it uses as much as digits as its factorization.

1031230313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1031230313 is about 32112.7749190256. The cubic root of 1031230313 is about 1010.3035760324.

Adding to 1031230313 its reverse (3130321301), we get a palindrome (4161551614).

The spelling of 1031230313 in words is "one billion, thirty-one million, two hundred thirty thousand, three hundred thirteen".