1321320132313 has 8 divisors (see below), whose sum is σ = 1325373176160. Its totient is φ = 1317267457440.

The previous prime is 1321320132289. The next prime is 1321320132323. The reversal of 1321320132313 is 3132310231231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321320132313 - 2⁹ = 1321320131801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321320132323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8227578 + ... + 8386636.

It is an arithmetic number, because the mean of its divisors is an integer number (165671647020).

Almost surely, 2^{1321320132313} is an apocalyptic number.

It is an amenable number.

1321320132313 is a deficient number, since it is larger than the sum of its proper divisors (4053043847).

1321320132313 is a wasteful number, since it uses less digits than its factorization.

1321320132313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184487.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1321320132313 its reverse (3132310231231), we get a palindrome (4453630363544).

The spelling of 1321320132313 in words is "one trillion, three hundred twenty-one billion, three hundred twenty million, one hundred thirty-two thousand, three hundred thirteen".