13213320012 has 36 divisors (see below), whose sum is σ = 33433207080. Its totient is φ = 4400105472.

The previous prime is 13213319993. The next prime is 13213320017. The reversal of 13213320012 is 21002331231.

13213320012 is a `hidden beast` number, since 1 + 321 + 332 + 0 + 0 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (13213320017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143413 + ... + 216780.

Almost surely, 2^13213320012 is an apocalyptic number.

13213320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13213320012 is an abundant number, since it is smaller than the sum of its proper divisors (20219887068).

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

13213320012 is a wasteful number, since it uses less digits than its factorization.

13213320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361222 (or 361217 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13213320012 its reverse (21002331231), we get a palindrome (34215651243).

The spelling of 13213320012 in words is "thirteen billion, two hundred thirteen million, three hundred twenty thousand, twelve".