1240444443317 has 2 divisors, whose sum is σ = 1240444443318. Its totient is φ = 1240444443316.

The previous prime is 1240444443289. The next prime is 1240444443341. The reversal of 1240444443317 is 7133444440421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 894025089841 + 346419353476 = 945529^2 + 588574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240444443317 - 2¹⁴ = 1240444426933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240444443517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620222221658 + 620222221659.

It is an arithmetic number, because the mean of its divisors is an integer number (620222221659).

Almost surely, 2^{1240444443317} is an apocalyptic number.

It is an amenable number.

1240444443317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240444443317 is an equidigital number, since it uses as much as digits as its factorization.

1240444443317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 41.

Adding to 1240444443317 its reverse (7133444440421), we get a palindrome (8373888883738).

The spelling of 1240444443317 in words is "one trillion, two hundred forty billion, four hundred forty-four million, four hundred forty-three thousand, three hundred seventeen".