1310321333321 has 64 divisors (see below), whose sum is σ = 1807773327360. Its totient is φ = 916711568640.

The previous prime is 1310321333311. The next prime is 1310321333327. The reversal of 1310321333321 is 1233331230131.

It is not a de Polignac number, because 1310321333321 - 2⁶ = 1310321333257 is a prime.

It is a super-2 number, since 2×1310321333321² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1310321333327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10223591 + ... + 10350963.

It is an arithmetic number, because the mean of its divisors is an integer number (28246458240).

Almost surely, 2^{1310321333321} is an apocalyptic number.

1310321333321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310321333321 is a deficient number, since it is larger than the sum of its proper divisors (497451994039).

1310321333321 is a wasteful number, since it uses less digits than its factorization.

1310321333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127686.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1310321333321 its reverse (1233331230131), we get a palindrome (2543652563452).

The spelling of 1310321333321 in words is "one trillion, three hundred ten billion, three hundred twenty-one million, three hundred thirty-three thousand, three hundred twenty-one".