1311131332 has 12 divisors (see below), whose sum is σ = 2622262720. Its totient is φ = 561913416.

The previous prime is 1311131303. The next prime is 1311131387. The reversal of 1311131332 is 2331311131.

1311131332 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23413032 + ... + 23413087.

Almost surely, 2^1311131332 is an apocalyptic number.

It is an amenable number.

1311131332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311131332 is a wasteful number, since it uses less digits than its factorization.

1311131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46826130 (or 46826128 counting only the distinct ones).

The product of its digits is 162, while the sum is 19.

The square root of 1311131332 is about 36209.5475254801. The cubic root of 1311131332 is about 1094.4990743401.

Adding to 1311131332 its reverse (2331311131), we get a palindrome (3642442463).

The spelling of 1311131332 in words is "one billion, three hundred eleven million, one hundred thirty-one thousand, three hundred thirty-two".