1313423313 has 4 divisors (see below), whose sum is σ = 1751231088. Its totient is φ = 875615540.

The previous prime is 1313423297. The next prime is 1313423327. The reversal of 1313423313 is 3133243131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313423313 - 2⁴ = 1313423297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1313423113) 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 3 ways as a sum of consecutive naturals, for example, 218903883 + ... + 218903888.

It is an arithmetic number, because the mean of its divisors is an integer number (437807772).

Almost surely, 2^1313423313 is an apocalyptic number.

It is an amenable number.

1313423313 is a deficient number, since it is larger than the sum of its proper divisors (437807775).

1313423313 is an equidigital number, since it uses as much as digits as its factorization.

1313423313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437807774.

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

The square root of 1313423313 is about 36241.1825552092. The cubic root of 1313423313 is about 1095.1364655509.

Adding to 1313423313 its reverse (3133243131), we get a palindrome (4446666444).

The spelling of 1313423313 in words is "one billion, three hundred thirteen million, four hundred twenty-three thousand, three hundred thirteen".