1242320363 has 2 divisors, whose sum is σ = 1242320364. Its totient is φ = 1242320362.

The previous prime is 1242320341. The next prime is 1242320369. The reversal of 1242320363 is 3630232421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242320363 - 2¹⁸ = 1242058219 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1242320369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621160181 + 621160182.

It is an arithmetic number, because the mean of its divisors is an integer number (621160182).

Almost surely, 2^1242320363 is an apocalyptic number.

1242320363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242320363 is an equidigital number, since it uses as much as digits as its factorization.

1242320363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1242320363 is about 35246.5652652851. The cubic root of 1242320363 is about 1075.0067749348.

Adding to 1242320363 its reverse (3630232421), we get a palindrome (4872552784).

The spelling of 1242320363 in words is "one billion, two hundred forty-two million, three hundred twenty thousand, three hundred sixty-three".