13313213302321 has 4 divisors (see below), whose sum is σ = 13410390041892. Its totient is φ = 13216036562752.

The previous prime is 13313213302307. The next prime is 13313213302331. The reversal of 13313213302321 is 12320331231331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3413625760000 + 9899587542321 = 1847600^2 + 3146361^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313213302321 - 2⁹ = 13313213301809 is a prime.

It is a super-2 number, since 2×13313213302321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13313213302321.

It is not an unprimeable number, because it can be changed into a prime (13313213302331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48588369580 + ... + 48588369853.

It is an arithmetic number, because the mean of its divisors is an integer number (3352597510473).

Almost surely, 2^{13313213302321} is an apocalyptic number.

It is an amenable number.

13313213302321 is a deficient number, since it is larger than the sum of its proper divisors (97176739571).

13313213302321 is an equidigital number, since it uses as much as digits as its factorization.

13313213302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97176739570.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 13313213302321 its reverse (12320331231331), we get a palindrome (25633544533652).

The spelling of 13313213302321 in words is "thirteen trillion, three hundred thirteen billion, two hundred thirteen million, three hundred two thousand, three hundred twenty-one".