5313321113981 has 2 divisors, whose sum is σ = 5313321113982. Its totient is φ = 5313321113980.

The previous prime is 5313321113929. The next prime is 5313321113983. The reversal of 5313321113981 is 1893111233135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4624198656025 + 689122457956 = 2150395^2 + 830134^2 .

It is a cyclic number.

It is not a de Polignac number, because 5313321113981 - 2⁶ = 5313321113917 is a prime.

It is a super-2 number, since 2×5313321113981² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 5313321113983, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5313321113983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656660556990 + 2656660556991.

It is an arithmetic number, because the mean of its divisors is an integer number (2656660556991).

Almost surely, 2^{5313321113981} is an apocalyptic number.

It is an amenable number.

5313321113981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5313321113981 is an equidigital number, since it uses as much as digits as its factorization.

5313321113981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 41.

The spelling of 5313321113981 in words is "five trillion, three hundred thirteen billion, three hundred twenty-one million, one hundred thirteen thousand, nine hundred eighty-one".