13223340312 has 384 divisors, whose sum is σ = 43149839040. Its totient is φ = 3344302080.

The previous prime is 13223340307. The next prime is 13223340313. The reversal of 13223340312 is 21304332231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223340313) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54868512 + ... + 54868752.

Almost surely, 2^13223340312 is an apocalyptic number.

13223340312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13223340312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21574919520).

13223340312 is an abundant number, since it is smaller than the sum of its proper divisors (29926498728).

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

13223340312 is a wasteful number, since it uses less digits than its factorization.

13223340312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13223340312 its reverse (21304332231), we get a palindrome (34527672543).

The spelling of 13223340312 in words is "thirteen billion, two hundred twenty-three million, three hundred forty thousand, three hundred twelve".