11423320043 has 4 divisors (see below), whose sum is σ = 11423559240. Its totient is φ = 11423080848.

The previous prime is 11423320039. The next prime is 11423320057. The reversal of 11423320043 is 34002332411.

11423320043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34002332411 = 64679 ⋅525709.

It is a cyclic number.

It is not a de Polignac number, because 11423320043 - 2² = 11423320039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11423320033) 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, 20705 + ... + 152562.

It is an arithmetic number, because the mean of its divisors is an integer number (2855889810).

Almost surely, 2^11423320043 is an apocalyptic number.

11423320043 is a deficient number, since it is larger than the sum of its proper divisors (239197).

11423320043 is an equidigital number, since it uses as much as digits as its factorization.

11423320043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239196.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 11423320043 its reverse (34002332411), we get a palindrome (45425652454).

The spelling of 11423320043 in words is "eleven billion, four hundred twenty-three million, three hundred twenty thousand, forty-three".