1311313042321 has 8 divisors (see below), whose sum is σ = 1420738618464. Its totient is φ = 1205475190080.

The previous prime is 1311313042307. The next prime is 1311313042327. The reversal of 1311313042321 is 1232403131131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311313042321 is a prime.

It is a super-2 number, since 2×1311313042321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311313042327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896930215 + ... + 896931676.

It is an arithmetic number, because the mean of its divisors is an integer number (177592327308).

Almost surely, 2^{1311313042321} is an apocalyptic number.

It is an amenable number.

1311313042321 is a deficient number, since it is larger than the sum of its proper divisors (109425576143).

1311313042321 is a wasteful number, since it uses less digits than its factorization.

1311313042321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793861951.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1311313042321 its reverse (1232403131131), we get a palindrome (2543716173452).

The spelling of 1311313042321 in words is "one trillion, three hundred eleven billion, three hundred thirteen million, forty-two thousand, three hundred twenty-one".