1242304307 has 2 divisors, whose sum is σ = 1242304308. Its totient is φ = 1242304306.

The previous prime is 1242304277. The next prime is 1242304339. The reversal of 1242304307 is 7034032421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242304307 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242304367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621152153 + 621152154.

It is an arithmetic number, because the mean of its divisors is an integer number (621152154).

Almost surely, 2^1242304307 is an apocalyptic number.

1242304307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242304307 is an equidigital number, since it uses as much as digits as its factorization.

1242304307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 1242304307 is about 35246.3374976748. The cubic root of 1242304307 is about 1075.0021437130.

Adding to 1242304307 its reverse (7034032421), we get a palindrome (8276336728).

The spelling of 1242304307 in words is "one billion, two hundred forty-two million, three hundred four thousand, three hundred seven".