1331023132 has 12 divisors (see below), whose sum is σ = 2373239736. Its totient is φ = 652954640.

The previous prime is 1331023117. The next prime is 1331023151. The reversal of 1331023132 is 2313201331.

It is a congruent number.

It is an unprimeable number.

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, 3138994 + ... + 3139417.

It is an arithmetic number, because the mean of its divisors is an integer number (197769978).

Almost surely, 2^1331023132 is an apocalyptic number.

It is an amenable number.

1331023132 is a deficient number, since it is larger than the sum of its proper divisors (1042216604).

1331023132 is a wasteful number, since it uses less digits than its factorization.

1331023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6278468 (or 6278466 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1331023132 is about 36483.1897180057. The cubic root of 1331023132 is about 1100.0063724149.

Adding to 1331023132 its reverse (2313201331), we get a palindrome (3644224463).

The spelling of 1331023132 in words is "one billion, three hundred thirty-one million, twenty-three thousand, one hundred thirty-two".