1313455043 has 4 divisors (see below), whose sum is σ = 1370561808. Its totient is φ = 1256348280.

The previous prime is 1313455019. The next prime is 1313455079. The reversal of 1313455043 is 3405543131.

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 1313455043 - 2¹⁰ = 1313454019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313454997 and 1313455015.

It is not an unprimeable number, because it can be changed into a prime (1313455243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28553348 + ... + 28553393.

It is an arithmetic number, because the mean of its divisors is an integer number (342640452).

Almost surely, 2^1313455043 is an apocalyptic number.

1313455043 is a deficient number, since it is larger than the sum of its proper divisors (57106765).

1313455043 is an equidigital number, since it uses as much as digits as its factorization.

1313455043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57106764.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1313455043 is about 36241.6203142188. The cubic root of 1313455043 is about 1095.1452843376.

Adding to 1313455043 its reverse (3405543131), we get a palindrome (4718998174).

The spelling of 1313455043 in words is "one billion, three hundred thirteen million, four hundred fifty-five thousand, forty-three".