1311112132 has 48 divisors (see below), whose sum is σ = 2536934400. Its totient is φ = 587936160.

The previous prime is 1311112093. The next prime is 1311112139. The reversal of 1311112132 is 2312111131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1311112139) 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 15 ways as a sum of consecutive naturals, for example, 1989219 + ... + 1989877.

It is an arithmetic number, because the mean of its divisors is an integer number (52852800).

Almost surely, 2^1311112132 is an apocalyptic number.

It is an amenable number.

1311112132 is a deficient number, since it is larger than the sum of its proper divisors (1225822268).

1311112132 is a wasteful number, since it uses less digits than its factorization.

1311112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1214 counting only the distinct ones).

The product of its digits is 36, while the sum is 16.

The square root of 1311112132 is about 36209.2824010640. The cubic root of 1311112132 is about 1094.4937317569.

Adding to 1311112132 its reverse (2312111131), we get a palindrome (3623223263).

The spelling of 1311112132 in words is "one billion, three hundred eleven million, one hundred twelve thousand, one hundred thirty-two".