13111222321 has 8 divisors (see below), whose sum is σ = 13420893024. Its totient is φ = 12801768000.

The previous prime is 13111222301. The next prime is 13111222339. The reversal of 13111222321 is 12322211131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13111222321 - 2⁷ = 13111222193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13111222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71946 + ... + 177196.

It is an arithmetic number, because the mean of its divisors is an integer number (1677611628).

Almost surely, 2^13111222321 is an apocalyptic number.

It is an amenable number.

13111222321 is a deficient number, since it is larger than the sum of its proper divisors (309670703).

13111222321 is a wasteful number, since it uses less digits than its factorization.

13111222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108191.

The product of its digits is 144, while the sum is 19.

Adding to 13111222321 its reverse (12322211131), we get a palindrome (25433433452).

The spelling of 13111222321 in words is "thirteen billion, one hundred eleven million, two hundred twenty-two thousand, three hundred twenty-one".