13333333312 has 112 divisors (see below), whose sum is σ = 29806221312. Its totient is φ = 5871697920.

The previous prime is 13333333303. The next prime is 13333333319. The reversal of 13333333312 is 21333333331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333333319) 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, 12265633 + ... + 12266719.

It is an arithmetic number, because the mean of its divisors is an integer number (266126976).

Almost surely, 2^13333333312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13333333312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14903110656).

13333333312 is an abundant number, since it is smaller than the sum of its proper divisors (16472888000).

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

13333333312 is a wasteful number, since it uses less digits than its factorization.

13333333312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1766 counting only the distinct ones).

The product of its digits is 13122, while the sum is 28.

Adding to 13333333312 its reverse (21333333331), we get a palindrome (34666666643).

It can be divided in two parts, 1333333331 and 2, that multiplied together give a palindrome (2666666662).

The spelling of 13333333312 in words is "thirteen billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred twelve".