13040330243 has 4 divisors (see below), whose sum is σ = 13102132968. Its totient is φ = 12978527520.

The previous prime is 13040330227. The next prime is 13040330299. The reversal of 13040330243 is 34203304031.

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 13040330243 - 2⁴ = 13040330227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13040330143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30901046 + ... + 30901467.

It is an arithmetic number, because the mean of its divisors is an integer number (3275533242).

Almost surely, 2^13040330243 is an apocalyptic number.

13040330243 is a deficient number, since it is larger than the sum of its proper divisors (61802725).

13040330243 is an equidigital number, since it uses as much as digits as its factorization.

13040330243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61802724.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 13040330243 its reverse (34203304031), we get a palindrome (47243634274).

The spelling of 13040330243 in words is "thirteen billion, forty million, three hundred thirty thousand, two hundred forty-three".