1242320383 has 2 divisors, whose sum is σ = 1242320384. Its totient is φ = 1242320382.

The previous prime is 1242320369. The next prime is 1242320411. The reversal of 1242320383 is 3830232421.

It is an a-pointer prime, because the next prime (1242320411) can be obtained adding 1242320383 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242320383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242320363) 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, 621160191 + 621160192.

It is an arithmetic number, because the mean of its divisors is an integer number (621160192).

Almost surely, 2^1242320383 is an apocalyptic number.

1242320383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242320383 is an equidigital number, since it uses as much as digits as its factorization.

1242320383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1242320383 is about 35246.5655490007. The cubic root of 1242320383 is about 1075.0067807036.

The spelling of 1242320383 in words is "one billion, two hundred forty-two million, three hundred twenty thousand, three hundred eighty-three".