12131322311 has 8 divisors (see below), whose sum is σ = 12574608480. Its totient is φ = 11689700512.

The previous prime is 12131322299. The next prime is 12131322323. The reversal of 12131322311 is 11322313121.

It is a happy number.

12131322311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12131322299) and next prime (12131322323).

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 12131322311 - 2¹⁰ = 12131321287 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 (12131322611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401240 + ... + 430413.

It is an arithmetic number, because the mean of its divisors is an integer number (1571826060).

Almost surely, 2^12131322311 is an apocalyptic number.

12131322311 is a deficient number, since it is larger than the sum of its proper divisors (443286169).

12131322311 is an equidigital number, since it uses as much as digits as its factorization.

12131322311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832185.

The product of its digits is 216, while the sum is 20.

Adding to 12131322311 its reverse (11322313121), we get a palindrome (23453635432).

The spelling of 12131322311 in words is "twelve billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred eleven".