1243024035013 has 2 divisors, whose sum is σ = 1243024035014. Its totient is φ = 1243024035012.

The previous prime is 1243024034983. The next prime is 1243024035053. The reversal of 1243024035013 is 3105304203421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1197083256769 + 45940778244 = 1094113^2 + 214338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1243024035013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243024035053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621512017506 + 621512017507.

It is an arithmetic number, because the mean of its divisors is an integer number (621512017507).

Almost surely, 2^{1243024035013} is an apocalyptic number.

It is an amenable number.

1243024035013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243024035013 is an equidigital number, since it uses as much as digits as its factorization.

1243024035013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 1243024035013 its reverse (3105304203421), we get a palindrome (4348328238434).

The spelling of 1243024035013 in words is "one trillion, two hundred forty-three billion, twenty-four million, thirty-five thousand, thirteen".