1311423140423 has 16 divisors (see below), whose sum is σ = 1462973239296. Its totient is φ = 1165326990240.

The previous prime is 1311423140413. The next prime is 1311423140459. The reversal of 1311423140423 is 3240413241131.

It is a cyclic number.

It is not a de Polignac number, because 1311423140423 - 2¹⁸ = 1311422878279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311423140413) 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, 1241111 + ... + 2040392.

It is an arithmetic number, because the mean of its divisors is an integer number (91435827456).

Almost surely, 2^{1311423140423} is an apocalyptic number.

1311423140423 is a deficient number, since it is larger than the sum of its proper divisors (151550098873).

1311423140423 is a wasteful number, since it uses less digits than its factorization.

1311423140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282334.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1311423140423 its reverse (3240413241131), we get a palindrome (4551836381554).

The spelling of 1311423140423 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, one hundred forty thousand, four hundred twenty-three".