1313045043 has 16 divisors (see below), whose sum is σ = 1769475456. Its totient is φ = 866011520.

The previous prime is 1313045039. The next prime is 1313045051. The reversal of 1313045043 is 3405403131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1313045043 - 2² = 1313045039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313045053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280480 + ... + 285122.

It is an arithmetic number, because the mean of its divisors is an integer number (110592216).

Almost surely, 2^1313045043 is an apocalyptic number.

1313045043 is a deficient number, since it is larger than the sum of its proper divisors (456430413).

1313045043 is a wasteful number, since it uses less digits than its factorization.

1313045043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5634.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1313045043 is about 36235.9633927401. The cubic root of 1313045043 is about 1095.0313212200.

Adding to 1313045043 its reverse (3405403131), we get a palindrome (4718448174).

The spelling of 1313045043 in words is "one billion, three hundred thirteen million, forty-five thousand, forty-three".