13021321122311 has 4 divisors (see below), whose sum is σ = 13087419199272. Its totient is φ = 12955223045352.

The previous prime is 13021321122259. The next prime is 13021321122353. The reversal of 13021321122311 is 11322112312031.

It is a happy number.

13021321122311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13021321122311 - 2⁶ = 13021321122247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021321122361) 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, 33049038185 + ... + 33049038578.

It is an arithmetic number, because the mean of its divisors is an integer number (3271854799818).

Almost surely, 2^{13021321122311} is an apocalyptic number.

13021321122311 is a deficient number, since it is larger than the sum of its proper divisors (66098076961).

13021321122311 is an equidigital number, since it uses as much as digits as its factorization.

13021321122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66098076960.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13021321122311 its reverse (11322112312031), we get a palindrome (24343433434342).

The spelling of 13021321122311 in words is "thirteen trillion, twenty-one billion, three hundred twenty-one million, one hundred twenty-two thousand, three hundred eleven".