13213331312 has 20 divisors (see below), whose sum is σ = 26034743640. Its totient is φ = 6494687808.

The previous prime is 13213331297. The next prime is 13213331321. The reversal of 13213331312 is 21313331231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6997643 + ... + 6999530.

It is an arithmetic number, because the mean of its divisors is an integer number (1301737182).

Almost surely, 2^13213331312 is an apocalyptic number.

It is an amenable number.

13213331312 is a deficient number, since it is larger than the sum of its proper divisors (12821412328).

13213331312 is a wasteful number, since it uses less digits than its factorization.

13213331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13997240 (or 13997234 counting only the distinct ones).

The product of its digits is 972, while the sum is 23.

Adding to 13213331312 its reverse (21313331231), we get a palindrome (34526662543).

The spelling of 13213331312 in words is "thirteen billion, two hundred thirteen million, three hundred thirty-one thousand, three hundred twelve".