1311133232 has 20 divisors (see below), whose sum is σ = 2541250296. Its totient is φ = 655326720.

The previous prime is 1311133231. The next prime is 1311133283. The reversal of 1311133232 is 2323311131.

It is not an unprimeable number, because it can be changed into a prime (1311133231) by changing a digit.

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, 35183 + ... + 62129.

Almost surely, 2^1311133232 is an apocalyptic number.

It is an amenable number.

1311133232 is a deficient number, since it is larger than the sum of its proper divisors (1230117064).

1311133232 is a wasteful number, since it uses less digits than its factorization.

1311133232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29996 (or 29990 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 1311133232 is about 36209.5737616449. The cubic root of 1311133232 is about 1094.4996030304.

Adding to 1311133232 its reverse (2323311131), we get a palindrome (3634444363).

The spelling of 1311133232 in words is "one billion, three hundred eleven million, one hundred thirty-three thousand, two hundred thirty-two".