11311332212 has 12 divisors (see below), whose sum is σ = 19857277860. Its totient is φ = 5637824256.

The previous prime is 11311332203. The next prime is 11311332217. The reversal of 11311332212 is 21223311311.

It is a happy number.

11311332212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 701508196 + 10609824016 = 26486^2 + 103004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311332217) 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 3 ways as a sum of consecutive naturals, for example, 4459037 + ... + 4461572.

It is an arithmetic number, because the mean of its divisors is an integer number (1654773155).

Almost surely, 2^11311332212 is an apocalyptic number.

It is an amenable number.

11311332212 is a deficient number, since it is larger than the sum of its proper divisors (8545945648).

11311332212 is a wasteful number, since it uses less digits than its factorization.

11311332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8920930 (or 8920928 counting only the distinct ones).

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

Adding to 11311332212 its reverse (21223311311), we get a palindrome (32534643523).

The spelling of 11311332212 in words is "eleven billion, three hundred eleven million, three hundred thirty-two thousand, two hundred twelve".