13350320321 has 4 divisors (see below), whose sum is σ = 14377268052. Its totient is φ = 12323372592.

The previous prime is 13350320273. The next prime is 13350320369. The reversal of 13350320321 is 12302305331.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13350320273) and next prime (13350320369).

It can be written as a sum of positive squares in 2 ways, for example, as 2401000000 + 10949320321 = 49000^2 + 104639^2 .

It is a cyclic number.

It is not a de Polignac number, because 13350320321 - 2¹⁴ = 13350303937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13350320021) 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, 513473846 + ... + 513473871.

It is an arithmetic number, because the mean of its divisors is an integer number (3594317013).

Almost surely, 2^13350320321 is an apocalyptic number.

It is an amenable number.

13350320321 is a deficient number, since it is larger than the sum of its proper divisors (1026947731).

13350320321 is a wasteful number, since it uses less digits than its factorization.

13350320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026947730.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 13350320321 its reverse (12302305331), we get a palindrome (25652625652).

The spelling of 13350320321 in words is "thirteen billion, three hundred fifty million, three hundred twenty thousand, three hundred twenty-one".