12011320022311 has 4 divisors (see below), whose sum is σ = 12180493543824. Its totient is φ = 11842146500800.

The previous prime is 12011320022269. The next prime is 12011320022327. The reversal of 12011320022311 is 11322002311021.

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 12011320022311 - 2⁴³ = 3215227000103 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 (12011320022011) 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, 84586760650 + ... + 84586760791.

It is an arithmetic number, because the mean of its divisors is an integer number (3045123385956).

Almost surely, 2^{12011320022311} is an apocalyptic number.

12011320022311 is a deficient number, since it is larger than the sum of its proper divisors (169173521513).

12011320022311 is an equidigital number, since it uses as much as digits as its factorization.

12011320022311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169173521512.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12011320022311 its reverse (11322002311021), we get a palindrome (23333322333332).

The spelling of 12011320022311 in words is "twelve trillion, eleven billion, three hundred twenty million, twenty-two thousand, three hundred eleven".