1313211344423 has 16 divisors (see below), whose sum is σ = 1456940476800. Its totient is φ = 1173541733280.

The previous prime is 1313211344413. The next prime is 1313211344437. The reversal of 1313211344423 is 3244431123131.

It is a cyclic number.

It is not a de Polignac number, because 1313211344423 - 2¹⁰ = 1313211343399 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 1313211344423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313211344413) 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, 26716193 + ... + 26765301.

It is an arithmetic number, because the mean of its divisors is an integer number (91058779800).

Almost surely, 2^{1313211344423} is an apocalyptic number.

1313211344423 is a deficient number, since it is larger than the sum of its proper divisors (143729132377).

1313211344423 is a wasteful number, since it uses less digits than its factorization.

1313211344423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90382.

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

Adding to 1313211344423 its reverse (3244431123131), we get a palindrome (4557642467554).

The spelling of 1313211344423 in words is "one trillion, three hundred thirteen billion, two hundred eleven million, three hundred forty-four thousand, four hundred twenty-three".