13213144312 has 32 divisors (see below), whose sum is σ = 26113251600. Its totient is φ = 6250535424.

The previous prime is 13213144279. The next prime is 13213144349. The reversal of 13213144312 is 21344131231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57648 + ... + 172480.

Almost surely, 2^13213144312 is an apocalyptic number.

It is an amenable number.

13213144312 is a deficient number, since it is larger than the sum of its proper divisors (12900107288).

13213144312 is a wasteful number, since it uses less digits than its factorization.

13213144312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115615 (or 115611 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 13213144312 its reverse (21344131231), we get a palindrome (34557275543).

The spelling of 13213144312 in words is "thirteen billion, two hundred thirteen million, one hundred forty-four thousand, three hundred twelve".