1331441312 has 12 divisors (see below), whose sum is σ = 2621275146. Its totient is φ = 665720640.

The previous prime is 1331441291. The next prime is 1331441317. The reversal of 1331441312 is 2131441331.

It can be written as a sum of positive squares in only one way, i.e., 680375056 + 651066256 = 26084^2 + 25516^2 .

It is not an unprimeable number, because it can be changed into a prime (1331441317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20803739 + ... + 20803802.

Almost surely, 2^1331441312 is an apocalyptic number.

It is an amenable number.

1331441312 is a deficient number, since it is larger than the sum of its proper divisors (1289833834).

1331441312 is an equidigital number, since it uses as much as digits as its factorization.

1331441312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41607551 (or 41607543 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 1331441312 is about 36488.9204005819. The cubic root of 1331441312 is about 1100.1215601197.

Adding to 1331441312 its reverse (2131441331), we get a palindrome (3462882643).

The spelling of 1331441312 in words is "one billion, three hundred thirty-one million, four hundred forty-one thousand, three hundred twelve".