1311005332 has 36 divisors (see below), whose sum is σ = 2839228896. Its totient is φ = 518637600.

The previous prime is 1311005317. The next prime is 1311005363. The reversal of 1311005332 is 2335001131.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 133794 + ... + 143257.

Almost surely, 2^1311005332 is an apocalyptic number.

It is an amenable number.

1311005332 is an abundant number, since it is smaller than the sum of its proper divisors (1528223564).

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

1311005332 is a wasteful number, since it uses less digits than its factorization.

1311005332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277088 (or 277073 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1311005332 is about 36207.8076110664. The cubic root of 1311005332 is about 1094.4640126857.

Adding to 1311005332 its reverse (2335001131), we get a palindrome (3646006463).

The spelling of 1311005332 in words is "one billion, three hundred eleven million, five thousand, three hundred thirty-two".