1224430313 has 2 divisors, whose sum is σ = 1224430314. Its totient is φ = 1224430312.

The previous prime is 1224430271. The next prime is 1224430331. The reversal of 1224430313 is 3130344221.

Together with next prime (1224430331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 941753344 + 282676969 = 30688^2 + 16813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224430313 - 2¹⁴ = 1224413929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1224430393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612215156 + 612215157.

It is an arithmetic number, because the mean of its divisors is an integer number (612215157).

Almost surely, 2^1224430313 is an apocalyptic number.

It is an amenable number.

1224430313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224430313 is an equidigital number, since it uses as much as digits as its factorization.

1224430313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1224430313 is about 34991.8606678753. The cubic root of 1224430313 is about 1069.8215887354.

Adding to 1224430313 its reverse (3130344221), we get a palindrome (4354774534).

The spelling of 1224430313 in words is "one billion, two hundred twenty-four million, four hundred thirty thousand, three hundred thirteen".