5313323322521 has 4 divisors (see below), whose sum is σ = 5318114417700. Its totient is φ = 5308532227344.

The previous prime is 5313323322511. The next prime is 5313323322553. The reversal of 5313323322521 is 1252233233135.

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

It can be written as a sum of positive squares in 2 ways, for example, as 402507769225 + 4910815553296 = 634435^2 + 2216036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5313323322521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5313323322511) 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, 2395545926 + ... + 2395548143.

It is an arithmetic number, because the mean of its divisors is an integer number (1329528604425).

Almost surely, 2^{5313323322521} is an apocalyptic number.

It is an amenable number.

5313323322521 is a deficient number, since it is larger than the sum of its proper divisors (4791095179).

5313323322521 is a wasteful number, since it uses less digits than its factorization.

5313323322521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791095178.

The product of its digits is 97200, while the sum is 35.

Adding to 5313323322521 its reverse (1252233233135), we get a palindrome (6565556555656).

The spelling of 5313323322521 in words is "five trillion, three hundred thirteen billion, three hundred twenty-three million, three hundred twenty-two thousand, five hundred twenty-one".