1313440242613 has 2 divisors, whose sum is σ = 1313440242614. Its totient is φ = 1313440242612.

The previous prime is 1313440242589. The next prime is 1313440242659. The reversal of 1313440242613 is 3162420443131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1229344302564 + 84095940049 = 1108758^2 + 289993^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313440242613 - 2⁵ = 1313440242581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313440242683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656720121306 + 656720121307.

It is an arithmetic number, because the mean of its divisors is an integer number (656720121307).

Almost surely, 2^{1313440242613} is an apocalyptic number.

It is an amenable number.

1313440242613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313440242613 is an equidigital number, since it uses as much as digits as its factorization.

1313440242613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 1313440242613 its reverse (3162420443131), we get a palindrome (4475860685744).

The spelling of 1313440242613 in words is "one trillion, three hundred thirteen billion, four hundred forty million, two hundred forty-two thousand, six hundred thirteen".