1240120363 has 2 divisors, whose sum is σ = 1240120364. Its totient is φ = 1240120362.

The previous prime is 1240120337. The next prime is 1240120381. The reversal of 1240120363 is 3630210421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1240120363 - 2⁹ = 1240119851 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240120303) 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, 620060181 + 620060182.

It is an arithmetic number, because the mean of its divisors is an integer number (620060182).

Almost surely, 2^1240120363 is an apocalyptic number.

1240120363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240120363 is an equidigital number, since it uses as much as digits as its factorization.

1240120363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1240120363 is about 35215.3427216036. The cubic root of 1240120363 is about 1074.3718307334.

Adding to 1240120363 its reverse (3630210421), we get a palindrome (4870330784).

The spelling of 1240120363 in words is "one billion, two hundred forty million, one hundred twenty thousand, three hundred sixty-three".