300243040340443 has 4 divisors (see below), whose sum is σ = 300259680775288. Its totient is φ = 300226399905600.

The previous prime is 300243040340381. The next prime is 300243040340449. The reversal of 300243040340443 is 344043040342003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-300243040340443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300243040340399 and 300243040340408.

It is not an unprimeable number, because it can be changed into a prime (300243040340449) 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, 8320190358 + ... + 8320226443.

It is an arithmetic number, because the mean of its divisors is an integer number (75064920193822).

Almost surely, 2^{300243040340443} is an apocalyptic number.

300243040340443 is a deficient number, since it is larger than the sum of its proper divisors (16640434845).

300243040340443 is a wasteful number, since it uses less digits than its factorization.

300243040340443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16640434844.

The product of its (nonzero) digits is 165888, while the sum is 34.

Adding to 300243040340443 its reverse (344043040342003), we get a palindrome (644286080682446).

The spelling of 300243040340443 in words is "three hundred trillion, two hundred forty-three billion, forty million, three hundred forty thousand, four hundred forty-three".