1310313009 has 4 divisors (see below), whose sum is σ = 1747084016. Its totient is φ = 873542004.

The previous prime is 1310312977. The next prime is 1310313019. The reversal of 1310313009 is 9003130131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9003130131 = 3 ⋅3001043377.

It is not a de Polignac number, because 1310313009 - 2⁵ = 1310312977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310313019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218385499 + ... + 218385504.

It is an arithmetic number, because the mean of its divisors is an integer number (436771004).

Almost surely, 2^1310313009 is an apocalyptic number.

It is an amenable number.

1310313009 is a deficient number, since it is larger than the sum of its proper divisors (436771007).

1310313009 is an equidigital number, since it uses as much as digits as its factorization.

1310313009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436771006.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 1310313009 is about 36198.2459381667. The cubic root of 1310313009 is about 1094.2713218781.

The spelling of 1310313009 in words is "one billion, three hundred ten million, three hundred thirteen thousand, nine".