13530104321 has 4 divisors (see below), whose sum is σ = 13545892932. Its totient is φ = 13514315712.

The previous prime is 13530104299. The next prime is 13530104323. The reversal of 13530104321 is 12340103531.

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 9518148721 + 4011955600 = 97561^2 + 63340^2 .

It is a cyclic number.

It is not a de Polignac number, because 13530104321 - 2⁶ = 13530104257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13530104323) 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, 7893020 + ... + 7894733.

It is an arithmetic number, because the mean of its divisors is an integer number (3386473233).

Almost surely, 2^13530104321 is an apocalyptic number.

It is an amenable number.

13530104321 is a deficient number, since it is larger than the sum of its proper divisors (15788611).

13530104321 is an equidigital number, since it uses as much as digits as its factorization.

13530104321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15788610.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 13530104321 its reverse (12340103531), we get a palindrome (25870207852).

The spelling of 13530104321 in words is "thirteen billion, five hundred thirty million, one hundred four thousand, three hundred twenty-one".