13312211112 has 64 divisors (see below), whose sum is σ = 37081584000. Its totient is φ = 4425017472.

The previous prime is 13312211111. The next prime is 13312211119. The reversal of 13312211112 is 21111221331.

13312211112 is a `hidden beast` number, since 1 + 331 + 221 + 1 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (13312211111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8293 + ... + 163380.

It is an arithmetic number, because the mean of its divisors is an integer number (579399750).

Almost surely, 2^13312211112 is an apocalyptic number.

13312211112 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 13312211112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18540792000).

13312211112 is an abundant number, since it is smaller than the sum of its proper divisors (23769372888).

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

13312211112 is a wasteful number, since it uses less digits than its factorization.

13312211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172047 (or 172037 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 13312211112 its reverse (21111221331), we get a palindrome (34423432443).

The spelling of 13312211112 in words is "thirteen billion, three hundred twelve million, two hundred eleven thousand, one hundred twelve".