1313021310023 has 4 divisors (see below), whose sum is σ = 1313032055160. Its totient is φ = 1313010564888.

The previous prime is 1313021310011. The next prime is 1313021310053. The reversal of 1313021310023 is 3200131203131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313021310023 - 2⁸ = 1313021309767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313021309977 and 1313021310004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313021310053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5187140 + ... + 5434377.

It is an arithmetic number, because the mean of its divisors is an integer number (328258013790).

Almost surely, 2^{1313021310023} is an apocalyptic number.

1313021310023 is a deficient number, since it is larger than the sum of its proper divisors (10745137).

1313021310023 is a wasteful number, since it uses less digits than its factorization.

1313021310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10745136.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1313021310023 its reverse (3200131203131), we get a palindrome (4513152513154).

The spelling of 1313021310023 in words is "one trillion, three hundred thirteen billion, twenty-one million, three hundred ten thousand, twenty-three".