1313444243423 has 16 divisors (see below), whose sum is σ = 1437858658656. Its totient is φ = 1192375175040.

The previous prime is 1313444243417. The next prime is 1313444243443. The reversal of 1313444243423 is 3243424443131.

It is a cyclic number.

It is not a de Polignac number, because 1313444243423 - 2⁴ = 1313444243407 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 (1313444243443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6044540 + ... + 6258062.

It is an arithmetic number, because the mean of its divisors is an integer number (89866166166).

Almost surely, 2^{1313444243423} is an apocalyptic number.

1313444243423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313444243423 is a deficient number, since it is larger than the sum of its proper divisors (124414415233).

1313444243423 is a wasteful number, since it uses less digits than its factorization.

1313444243423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221354.

The product of its digits is 331776, while the sum is 38.

Adding to 1313444243423 its reverse (3243424443131), we get a palindrome (4556868686554).

The spelling of 1313444243423 in words is "one trillion, three hundred thirteen billion, four hundred forty-four million, two hundred forty-three thousand, four hundred twenty-three".