13331221013 has 8 divisors (see below), whose sum is σ = 14627216736. Its totient is φ = 12049236400.

The previous prime is 13331221003. The next prime is 13331221037. The reversal of 13331221013 is 31012213331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13331221013 - 2²⁸ = 13062785557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331221003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3500783 + ... + 3504588.

It is an arithmetic number, because the mean of its divisors is an integer number (1828402092).

Almost surely, 2^13331221013 is an apocalyptic number.

It is an amenable number.

13331221013 is a deficient number, since it is larger than the sum of its proper divisors (1295995723).

13331221013 is a wasteful number, since it uses less digits than its factorization.

13331221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7005555.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13331221013 its reverse (31012213331), we get a palindrome (44343434344).

The spelling of 13331221013 in words is "thirteen billion, three hundred thirty-one million, two hundred twenty-one thousand, thirteen".