1313046243 has 12 divisors (see below), whose sum is σ = 1996444840. Its totient is φ = 829292256.

The previous prime is 1313046233. The next prime is 1313046257. The reversal of 1313046243 is 3426403131.

1313046243 is a `hidden beast` number, since 1 + 3 + 1 + 30 + 4 + 624 + 3 = 666.

It is not a de Polignac number, because 1313046243 - 2⁴ = 1313046227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313046233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3839146 + ... + 3839487.

Almost surely, 2^1313046243 is an apocalyptic number.

1313046243 is a deficient number, since it is larger than the sum of its proper divisors (683398597).

1313046243 is a wasteful number, since it uses less digits than its factorization.

1313046243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7678658 (or 7678655 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1313046243 is about 36235.9799508720. The cubic root of 1313046243 is about 1095.0316548052.

Adding to 1313046243 its reverse (3426403131), we get a palindrome (4739449374).

The spelling of 1313046243 in words is "one billion, three hundred thirteen million, forty-six thousand, two hundred forty-three".