12013311223321 has 8 divisors (see below), whose sum is σ = 12467268019080. Its totient is φ = 11562001406592.

The previous prime is 12013311223247. The next prime is 12013311223339. The reversal of 12013311223321 is 12332211331021.

It can be written as a sum of positive squares in 4 ways, for example, as 482940213721 + 11530371009600 = 694939^2 + 3395640^2 .

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 12013311223321 - 2²⁹ = 12012774352409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12013311223391) 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, 661735510 + ... + 661753663.

It is an arithmetic number, because the mean of its divisors is an integer number (1558408502385).

Almost surely, 2^{12013311223321} is an apocalyptic number.

It is an amenable number.

12013311223321 is a deficient number, since it is larger than the sum of its proper divisors (453956795759).

12013311223321 is a wasteful number, since it uses less digits than its factorization.

12013311223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323489515.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12013311223321 its reverse (12332211331021), we get a palindrome (24345522554342).

The spelling of 12013311223321 in words is "twelve trillion, thirteen billion, three hundred eleven million, two hundred twenty-three thousand, three hundred twenty-one".