13214444321 has 8 divisors (see below), whose sum is σ = 14232394344. Its totient is φ = 12196702080.

The previous prime is 13214444263. The next prime is 13214444323. The reversal of 13214444321 is 12344441231.

It can be written as a sum of positive squares in 4 ways, for example, as 181710400 + 13032733921 = 13480^2 + 114161^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13214444321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13214444323) 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, 95711 + ... + 188651.

It is an arithmetic number, because the mean of its divisors is an integer number (1779049293).

Almost surely, 2^13214444321 is an apocalyptic number.

It is an amenable number.

13214444321 is a deficient number, since it is larger than the sum of its proper divisors (1017950023).

13214444321 is a wasteful number, since it uses less digits than its factorization.

13214444321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103891.

The product of its digits is 9216, while the sum is 29.

Adding to 13214444321 its reverse (12344441231), we get a palindrome (25558885552).

The spelling of 13214444321 in words is "thirteen billion, two hundred fourteen million, four hundred forty-four thousand, three hundred twenty-one".