12311131322 has 24 divisors (see below), whose sum is σ = 21539323476. Its totient is φ = 5262038208.

The previous prime is 12311131303. The next prime is 12311131351. The reversal of 12311131322 is 22313111321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11525954881 + 785176441 = 107359^2 + 28021^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12311131294 and 12311131303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131843 + ... + 204950.

Almost surely, 2^12311131322 is an apocalyptic number.

12311131322 is a deficient number, since it is larger than the sum of its proper divisors (9228192154).

12311131322 is a wasteful number, since it uses less digits than its factorization.

12311131322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337182 (or 337175 counting only the distinct ones).

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

Adding to 12311131322 its reverse (22313111321), we get a palindrome (34624242643).

The spelling of 12311131322 in words is "twelve billion, three hundred eleven million, one hundred thirty-one thousand, three hundred twenty-two".