1313323043 has 4 divisors (see below), whose sum is σ = 1319212608. Its totient is φ = 1307433480.

The previous prime is 1313323031. The next prime is 1313323051. The reversal of 1313323043 is 3403233131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1313323043 - 2⁶ = 1313322979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313323003) 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, 2944448 + ... + 2944893.

It is an arithmetic number, because the mean of its divisors is an integer number (329803152).

Almost surely, 2^1313323043 is an apocalyptic number.

1313323043 is a deficient number, since it is larger than the sum of its proper divisors (5889565).

1313323043 is an equidigital number, since it uses as much as digits as its factorization.

1313323043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889564.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 1313323043 is about 36239.7991578320. The cubic root of 1313323043 is about 1095.1085963618.

Adding to 1313323043 its reverse (3403233131), we get a palindrome (4716556174).

The spelling of 1313323043 in words is "one billion, three hundred thirteen million, three hundred twenty-three thousand, forty-three".