1311434613423 has 80 divisors (see below), whose sum is σ = 2167230713472. Its totient is φ = 786926340000.

The previous prime is 1311434613389. The next prime is 1311434613427. The reversal of 1311434613423 is 3243164341131.

1311434613423 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 34 + 613 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 1311434613423 - 2³⁴ = 1294254744239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311434613427) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21837828 + ... + 21897798.

Almost surely, 2^{1311434613423} is an apocalyptic number.

1311434613423 is a deficient number, since it is larger than the sum of its proper divisors (855796100049).

1311434613423 is an frugal number, since it uses more digits than its factorization.

1311434613423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60110 (or 60086 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

Adding to 1311434613423 its reverse (3243164341131), we get a palindrome (4554598954554).

The spelling of 1311434613423 in words is "one trillion, three hundred eleven billion, four hundred thirty-four million, six hundred thirteen thousand, four hundred twenty-three".