1242324019 has 2 divisors, whose sum is σ = 1242324020. Its totient is φ = 1242324018.

The previous prime is 1242324007. The next prime is 1242324029. The reversal of 1242324019 is 9104232421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242324019 is a prime.

It is a super-2 number, since 2×1242324019² = 3086737936368624722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1242324029) 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, 621162009 + 621162010.

It is an arithmetic number, because the mean of its divisors is an integer number (621162010).

Almost surely, 2^1242324019 is an apocalyptic number.

1242324019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242324019 is an equidigital number, since it uses as much as digits as its factorization.

1242324019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1242324019 is about 35246.6171284565. The cubic root of 1242324019 is about 1075.0078294725.

The spelling of 1242324019 in words is "one billion, two hundred forty-two million, three hundred twenty-four thousand, nineteen".