1240441510013 has 2 divisors, whose sum is σ = 1240441510014. Its totient is φ = 1240441510012.

The previous prime is 1240441509911. The next prime is 1240441510123. The reversal of 1240441510013 is 3100151440421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664097866084 + 576343643929 = 814922^2 + 759173^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240441510013 - 2¹² = 1240441505917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240441510513) 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, 620220755006 + 620220755007.

It is an arithmetic number, because the mean of its divisors is an integer number (620220755007).

Almost surely, 2^{1240441510013} is an apocalyptic number.

It is an amenable number.

1240441510013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240441510013 is an equidigital number, since it uses as much as digits as its factorization.

1240441510013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1240441510013 its reverse (3100151440421), we get a palindrome (4340592950434).

The spelling of 1240441510013 in words is "one trillion, two hundred forty billion, four hundred forty-one million, five hundred ten thousand, thirteen".