12311032311 has 72 divisors (see below), whose sum is σ = 19701601920. Its totient is φ = 7383265344.

The previous prime is 12311032303. The next prime is 12311032313. The reversal of 12311032311 is 11323011321.

12311032311 is a `hidden beast` number, since 12 + 311 + 0 + 32 + 311 = 666.

It is not a de Polignac number, because 12311032311 - 2³ = 12311032303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311032313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10065646 + ... + 10066868.

It is an arithmetic number, because the mean of its divisors is an integer number (273633360).

Almost surely, 2^12311032311 is an apocalyptic number.

12311032311 is a deficient number, since it is larger than the sum of its proper divisors (7390569609).

12311032311 is a wasteful number, since it uses less digits than its factorization.

12311032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12311032311 its reverse (11323011321), we get a palindrome (23634043632).

The spelling of 12311032311 in words is "twelve billion, three hundred eleven million, thirty-two thousand, three hundred eleven".