12311220213308 has 24 divisors (see below), whose sum is σ = 21951333830160. Its totient is φ = 6039412620800.

The previous prime is 12311220213307. The next prime is 12311220213323. The reversal of 12311220213308 is 80331202211321.

It is a super-2 number, since 2×12311220213308² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311220213307) 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 7 ways as a sum of consecutive naturals, for example, 34560908 + ... + 34915308.

It is an arithmetic number, because the mean of its divisors is an integer number (914638909590).

Almost surely, 2^{12311220213308} is an apocalyptic number.

It is an amenable number.

12311220213308 is a deficient number, since it is larger than the sum of its proper divisors (9640113616852).

12311220213308 is a wasteful number, since it uses less digits than its factorization.

12311220213308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518317 (or 518315 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 12311220213308 its reverse (80331202211321), we get a palindrome (92642422424629).

The spelling of 12311220213308 in words is "twelve trillion, three hundred eleven billion, two hundred twenty million, two hundred thirteen thousand, three hundred eight".