1313004313 has 4 divisors (see below), whose sum is σ = 1313128228. Its totient is φ = 1312880400.

The previous prime is 1313004271. The next prime is 1313004323. The reversal of 1313004313 is 3134003131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3134003131 = 7 ⋅447714733.

It can be written as a sum of positive squares in 2 ways, for example, as 745945344 + 567058969 = 27312^2 + 23813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313004313 - 2⁹ = 1313003801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313004323) 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, 44406 + ... + 67807.

It is an arithmetic number, because the mean of its divisors is an integer number (328282057).

Almost surely, 2^1313004313 is an apocalyptic number.

It is an amenable number.

1313004313 is a deficient number, since it is larger than the sum of its proper divisors (123915).

1313004313 is a wasteful number, since it uses less digits than its factorization.

1313004313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123914.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1313004313 is about 36235.4013776583. The cubic root of 1313004313 is about 1095.0199986617.

Adding to 1313004313 its reverse (3134003131), we get a palindrome (4447007444).

The spelling of 1313004313 in words is "one billion, three hundred thirteen million, four thousand, three hundred thirteen".