11420043343 has 4 divisors (see below), whose sum is σ = 11420445400. Its totient is φ = 11419641288.

The previous prime is 11420043319. The next prime is 11420043379. The reversal of 11420043343 is 34334002411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34334002411 = 1999 ⋅17175589.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11420043343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420043443) 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, 154893 + ... + 216406.

It is an arithmetic number, because the mean of its divisors is an integer number (2855111350).

Almost surely, 2^11420043343 is an apocalyptic number.

11420043343 is a deficient number, since it is larger than the sum of its proper divisors (402057).

11420043343 is an equidigital number, since it uses as much as digits as its factorization.

11420043343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402056.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 11420043343 its reverse (34334002411), we get a palindrome (45754045754).

The spelling of 11420043343 in words is "eleven billion, four hundred twenty million, forty-three thousand, three hundred forty-three".