12311211230311 has 8 divisors (see below), whose sum is σ = 14071906929024. Its totient is φ = 10551003340920.

The previous prime is 12311211230273. The next prime is 12311211230327. The reversal of 12311211230311 is 11303211211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12311211230311 - 2⁷ = 12311211230183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311211230341) 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, 121898245 + ... + 121999198.

It is an arithmetic number, because the mean of its divisors is an integer number (1758988366128).

Almost surely, 2^{12311211230311} is an apocalyptic number.

12311211230311 is a deficient number, since it is larger than the sum of its proper divisors (1760695698713).

12311211230311 is an equidigital number, since it uses as much as digits as its factorization.

12311211230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243904661.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12311211230311 its reverse (11303211211321), we get a palindrome (23614422441632).

The spelling of 12311211230311 in words is "twelve trillion, three hundred eleven billion, two hundred eleven million, two hundred thirty thousand, three hundred eleven".