1311413243423 has 16 divisors (see below), whose sum is σ = 1335618686976. Its totient is φ = 1287456456960.

The previous prime is 1311413243363. The next prime is 1311413243537. The reversal of 1311413243423 is 3243423141131.

It is a cyclic number.

It is not a de Polignac number, because 1311413243423 - 2⁶ = 1311413243359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311413243423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311443243423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8189858 + ... + 8348448.

It is an arithmetic number, because the mean of its divisors is an integer number (83476167936).

Almost surely, 2^{1311413243423} is an apocalyptic number.

1311413243423 is a deficient number, since it is larger than the sum of its proper divisors (24205443553).

1311413243423 is a wasteful number, since it uses less digits than its factorization.

1311413243423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159374.

The product of its digits is 20736, while the sum is 32.

Adding to 1311413243423 its reverse (3243423141131), we get a palindrome (4554836384554).

The spelling of 1311413243423 in words is "one trillion, three hundred eleven billion, four hundred thirteen million, two hundred forty-three thousand, four hundred twenty-three".