12010311122321 has 4 divisors (see below), whose sum is σ = 12014712118500. Its totient is φ = 12005910126144.

The previous prime is 12010311122311. The next prime is 12010311122347. The reversal of 12010311122321 is 12322111301021.

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 9921939307921 + 2088371814400 = 3149911^2 + 1445120^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010311122321 - 2²² = 12010306928017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12010311122293 and 12010311122302.

It is not an unprimeable number, because it can be changed into a prime (12010311122311) 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, 2200493996 + ... + 2200499453.

It is an arithmetic number, because the mean of its divisors is an integer number (3003678029625).

Almost surely, 2^{12010311122321} is an apocalyptic number.

It is an amenable number.

12010311122321 is a deficient number, since it is larger than the sum of its proper divisors (4400996179).

12010311122321 is an equidigital number, since it uses as much as digits as its factorization.

12010311122321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400996178.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12010311122321 its reverse (12322111301021), we get a palindrome (24332422423342).

The spelling of 12010311122321 in words is "twelve trillion, ten billion, three hundred eleven million, one hundred twenty-two thousand, three hundred twenty-one".