13330123321 has 4 divisors (see below), whose sum is σ = 13333229812. Its totient is φ = 13327016832.

The previous prime is 13330123291. The next prime is 13330123343. The reversal of 13330123321 is 12332103331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4767212025 + 8562911296 = 69045^2 + 92536^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330123321 - 2²⁵ = 13296568889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13330123292 and 13330123301.

It is not an unprimeable number, because it can be changed into a prime (13330123021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546800 + ... + 1555393.

It is an arithmetic number, because the mean of its divisors is an integer number (3333307453).

Almost surely, 2^13330123321 is an apocalyptic number.

It is an amenable number.

13330123321 is a deficient number, since it is larger than the sum of its proper divisors (3106491).

13330123321 is an equidigital number, since it uses as much as digits as its factorization.

13330123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106490.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13330123321 its reverse (12332103331), we get a palindrome (25662226652).

The spelling of 13330123321 in words is "thirteen billion, three hundred thirty million, one hundred twenty-three thousand, three hundred twenty-one".