13223132321 has 32 divisors (see below), whose sum is σ = 16294457088. Its totient is φ = 10472509440.

The previous prime is 13223132317. The next prime is 13223132347. The reversal of 13223132321 is 12323132231.

It is a cyclic number.

It is not a de Polignac number, because 13223132321 - 2² = 13223132317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13223122321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4666121 + ... + 4668953.

It is an arithmetic number, because the mean of its divisors is an integer number (509201784).

Almost surely, 2^13223132321 is an apocalyptic number.

It is an amenable number.

13223132321 is a deficient number, since it is larger than the sum of its proper divisors (3071324767).

13223132321 is a wasteful number, since it uses less digits than its factorization.

13223132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561.

The product of its digits is 1296, while the sum is 23.

Adding to 13223132321 its reverse (12323132231), we get a palindrome (25546264552).

The spelling of 13223132321 in words is "thirteen billion, two hundred twenty-three million, one hundred thirty-two thousand, three hundred twenty-one".