1331324313 has 16 divisors (see below), whose sum is σ = 1937222400. Its totient is φ = 806550480.

The previous prime is 1331324299. The next prime is 1331324339. The reversal of 1331324313 is 3134231331.

It is a happy number.

It is not a de Polignac number, because 1331324313 - 2⁴ = 1331324297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331324513) 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, 101358 + ... + 113736.

It is an arithmetic number, because the mean of its divisors is an integer number (121076400).

Almost surely, 2^1331324313 is an apocalyptic number.

It is an amenable number.

1331324313 is a deficient number, since it is larger than the sum of its proper divisors (605898087).

1331324313 is a wasteful number, since it uses less digits than its factorization.

1331324313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15652.

The product of its digits is 1944, while the sum is 24.

The square root of 1331324313 is about 36487.3171526765. The cubic root of 1331324313 is about 1100.0893351688.

Adding to 1331324313 its reverse (3134231331), we get a palindrome (4465555644).

The spelling of 1331324313 in words is "one billion, three hundred thirty-one million, three hundred twenty-four thousand, three hundred thirteen".