13120022321 has 4 divisors (see below), whose sum is σ = 14994311232. Its totient is φ = 11245733412.

The previous prime is 13120022299. The next prime is 13120022341. The reversal of 13120022321 is 12322002131.

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 13120022321 - 2¹⁴ = 13120005937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13120022321.

It is not an unprimeable number, because it can be changed into a prime (13120022341) 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, 937144445 + ... + 937144458.

It is an arithmetic number, because the mean of its divisors is an integer number (3748577808).

Almost surely, 2^13120022321 is an apocalyptic number.

It is an amenable number.

13120022321 is a deficient number, since it is larger than the sum of its proper divisors (1874288911).

13120022321 is an equidigital number, since it uses as much as digits as its factorization.

13120022321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874288910.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13120022321 its reverse (12322002131), we get a palindrome (25442024452).

The spelling of 13120022321 in words is "thirteen billion, one hundred twenty million, twenty-two thousand, three hundred twenty-one".