13002112111321 has 4 divisors (see below), whose sum is σ = 13068112680612. Its totient is φ = 12936111542032.

The previous prime is 13002112111291. The next prime is 13002112111357. The reversal of 13002112111321 is 12311121120031.

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 8796331471321 + 4205780640000 = 2965861^2 + 2050800^2 .

It is a cyclic number.

It is not a de Polignac number, because 13002112111321 - 2²¹ = 13002110014169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13002112111721) 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, 33000284350 + ... + 33000284743.

It is an arithmetic number, because the mean of its divisors is an integer number (3267028170153).

Almost surely, 2^{13002112111321} is an apocalyptic number.

It is an amenable number.

13002112111321 is a deficient number, since it is larger than the sum of its proper divisors (66000569291).

13002112111321 is an equidigital number, since it uses as much as digits as its factorization.

13002112111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66000569290.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 13002112111321 its reverse (12311121120031), we get a palindrome (25313233231352).

The spelling of 13002112111321 in words is "thirteen trillion, two billion, one hundred twelve million, one hundred eleven thousand, three hundred twenty-one".