13013112232321 has 4 divisors (see below), whose sum is σ = 13013144973232. Its totient is φ = 13013079491412.

The previous prime is 13013112232243. The next prime is 13013112232361. The reversal of 13013112232321 is 12323221131031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13013112232321 - 2⁹ = 13013112231809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013112232361) 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, 15766851 + ... + 16571656.

It is an arithmetic number, because the mean of its divisors is an integer number (3253286243308).

Almost surely, 2^{13013112232321} is an apocalyptic number.

It is an amenable number.

13013112232321 is a deficient number, since it is larger than the sum of its proper divisors (32740911).

13013112232321 is an equidigital number, since it uses as much as digits as its factorization.

13013112232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32740910.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13013112232321 its reverse (12323221131031), we get a palindrome (25336333363352).

The spelling of 13013112232321 in words is "thirteen trillion, thirteen billion, one hundred twelve million, two hundred thirty-two thousand, three hundred twenty-one".