1224311339 has 2 divisors, whose sum is σ = 1224311340. Its totient is φ = 1224311338.

The previous prime is 1224311317. The next prime is 1224311371. The reversal of 1224311339 is 9331134221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224311339 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1224311939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612155669 + 612155670.

It is an arithmetic number, because the mean of its divisors is an integer number (612155670).

Almost surely, 2^1224311339 is an apocalyptic number.

1224311339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224311339 is an equidigital number, since it uses as much as digits as its factorization.

1224311339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 1224311339 is about 34990.1606026609. The cubic root of 1224311339 is about 1069.7869372258.

The spelling of 1224311339 in words is "one billion, two hundred twenty-four million, three hundred eleven thousand, three hundred thirty-nine".