13223320324 has 24 divisors (see below), whose sum is σ = 24510661560. Its totient is φ = 6220548096.

The previous prime is 13223320321. The next prime is 13223320361. The reversal of 13223320324 is 42302332231.

It can be written as a sum of positive squares in 4 ways, for example, as 433972224 + 12789348100 = 20832^2 + 113090^2 .

It is a super-2 number, since 2×13223320324² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13223320321) 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, 169144 + ... + 234640.

It is an arithmetic number, because the mean of its divisors is an integer number (1021277565).

Almost surely, 2^13223320324 is an apocalyptic number.

It is an amenable number.

13223320324 is a deficient number, since it is larger than the sum of its proper divisors (11287341236).

13223320324 is a wasteful number, since it uses less digits than its factorization.

13223320324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68487 (or 68485 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 13223320324 its reverse (42302332231), we get a palindrome (55525652555).

The spelling of 13223320324 in words is "thirteen billion, two hundred twenty-three million, three hundred twenty thousand, three hundred twenty-four".