13223433312 has 72 divisors (see below), whose sum is σ = 37617377616. Its totient is φ = 4406259456.

The previous prime is 13223433299. The next prime is 13223433317. The reversal of 13223433312 is 21333432231.

13223433312 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 343 + 3 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×13223433312² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223433317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1052733 + ... + 1065219.

It is an arithmetic number, because the mean of its divisors is an integer number (522463578).

Almost surely, 2^13223433312 is an apocalyptic number.

13223433312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13223433312 is an abundant number, since it is smaller than the sum of its proper divisors (24393944304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223433312 is a wasteful number, since it uses less digits than its factorization.

13223433312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16180 (or 16169 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 13223433312 its reverse (21333432231), we get a palindrome (34556865543).

The spelling of 13223433312 in words is "thirteen billion, two hundred twenty-three million, four hundred thirty-three thousand, three hundred twelve".