2311302122012 has 24 divisors (see below), whose sum is σ = 4356233381136. Its totient is φ = 1066676986368.

The previous prime is 2311302122011. The next prime is 2311302122111. The reversal of 2311302122012 is 2102212031132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311302122011) 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, 899093 + ... + 2330444.

It is an arithmetic number, because the mean of its divisors is an integer number (181509724214).

Almost surely, 2^{2311302122012} is an apocalyptic number.

It is an amenable number.

2311302122012 is a deficient number, since it is larger than the sum of its proper divisors (2044931259124).

2311302122012 is a wasteful number, since it uses less digits than its factorization.

2311302122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243317 (or 3243315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2311302122012 its reverse (2102212031132), we get a palindrome (4413514153144).

The spelling of 2311302122012 in words is "two trillion, three hundred eleven billion, three hundred two million, one hundred twenty-two thousand, twelve".