1313313332321 has 4 divisors (see below), whose sum is σ = 1313356339200. Its totient is φ = 1313270325444.

The previous prime is 1313313332209. The next prime is 1313313332323. The reversal of 1313313332321 is 1232333133131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313313332321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313313332323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21457601 + ... + 21518718.

It is an arithmetic number, because the mean of its divisors is an integer number (328339084800).

Almost surely, 2^{1313313332321} is an apocalyptic number.

It is an amenable number.

1313313332321 is a deficient number, since it is larger than the sum of its proper divisors (43006879).

1313313332321 is an equidigital number, since it uses as much as digits as its factorization.

1313313332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43006878.

The product of its digits is 8748, while the sum is 29.

Adding to 1313313332321 its reverse (1232333133131), we get a palindrome (2545646465452).

The spelling of 1313313332321 in words is "one trillion, three hundred thirteen billion, three hundred thirteen million, three hundred thirty-two thousand, three hundred twenty-one".