1331324013 has 16 divisors (see below), whose sum is σ = 1809864000. Its totient is φ = 870190464.

The previous prime is 1331324011. The next prime is 1331324051. The reversal of 1331324013 is 3104231331.

It is not a de Polignac number, because 1331324013 - 2¹ = 1331324011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331324011) 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, 378738 + ... + 382236.

It is an arithmetic number, because the mean of its divisors is an integer number (113116500).

Almost surely, 2^1331324013 is an apocalyptic number.

It is an amenable number.

1331324013 is a deficient number, since it is larger than the sum of its proper divisors (478539987).

1331324013 is a wasteful number, since it uses less digits than its factorization.

1331324013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5948.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1331324013 is about 36487.3130416587. The cubic root of 1331324013 is about 1100.0892525376.

Adding to 1331324013 its reverse (3104231331), we get a palindrome (4435555344).

The spelling of 1331324013 in words is "one billion, three hundred thirty-one million, three hundred twenty-four thousand, thirteen".