13311221013 has 12 divisors (see below), whose sum is σ = 19228405248. Its totient is φ = 8873646120.

The previous prime is 13311220991. The next prime is 13311221041. The reversal of 13311221013 is 31012211331.

It is not a de Polignac number, because 13311221013 - 2⁸ = 13311220757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311221113) 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, 200206 + ... + 258272.

It is an arithmetic number, because the mean of its divisors is an integer number (1602367104).

Almost surely, 2^13311221013 is an apocalyptic number.

It is an amenable number.

13311221013 is a deficient number, since it is larger than the sum of its proper divisors (5917184235).

13311221013 is a wasteful number, since it uses less digits than its factorization.

13311221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83544 (or 83541 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13311221013 its reverse (31012211331), we get a palindrome (44323432344).

The spelling of 13311221013 in words is "thirteen billion, three hundred eleven million, two hundred twenty-one thousand, thirteen".