1313004043 has 4 divisors (see below), whose sum is σ = 1414004368. Its totient is φ = 1212003720.

The previous prime is 1313004023. The next prime is 1313004073. The reversal of 1313004043 is 3404003131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3404003131 = 1093 ⋅3114367.

It is a cyclic number.

It is not a de Polignac number, because 1313004043 - 2²⁹ = 776133131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313004043.

It is not an unprimeable number, because it can be changed into a prime (1313004023) 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, 50500143 + ... + 50500168.

It is an arithmetic number, because the mean of its divisors is an integer number (353501092).

Almost surely, 2^1313004043 is an apocalyptic number.

1313004043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1313004043 is a deficient number, since it is larger than the sum of its proper divisors (101000325).

1313004043 is a wasteful number, since it uses less digits than its factorization.

1313004043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101000324.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1313004043 is about 36235.3976520198. The cubic root of 1313004043 is about 1095.0199236035.

Adding to 1313004043 its reverse (3404003131), we get a palindrome (4717007174).

The spelling of 1313004043 in words is "one billion, three hundred thirteen million, four thousand, forty-three".