12011322012311 has 4 divisors (see below), whose sum is σ = 12304281085824. Its totient is φ = 11718362938800.

The previous prime is 12011322012301. The next prime is 12011322012323. The reversal of 12011322012311 is 11321022311021.

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 12011322012311 - 2¹⁴ = 12011321995927 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 (12011322012301) 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, 146479536695 + ... + 146479536776.

It is an arithmetic number, because the mean of its divisors is an integer number (3076070271456).

Almost surely, 2^{12011322012311} is an apocalyptic number.

12011322012311 is a deficient number, since it is larger than the sum of its proper divisors (292959073513).

12011322012311 is an equidigital number, since it uses as much as digits as its factorization.

12011322012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292959073512.

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

Adding to 12011322012311 its reverse (11321022311021), we get a palindrome (23332344323332).

The spelling of 12011322012311 in words is "twelve trillion, eleven billion, three hundred twenty-two million, twelve thousand, three hundred eleven".