11543043 has 8 divisors (see below), whose sum is σ = 15416656. Its totient is φ = 7682400.

The previous prime is 11543041. The next prime is 11543047. The reversal of 11543043 is 34034511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11543043 - 2¹ = 11543041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11543041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928 + ... + 4893.

It is an arithmetic number, because the mean of its divisors is an integer number (1927082).

Almost surely, 2^11543043 is an apocalyptic number.

11543043 is a deficient number, since it is larger than the sum of its proper divisors (3873613).

11543043 is an equidigital number, since it uses as much as digits as its factorization.

11543043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 11543043 is about 3397.5054083842. The cubic root of 11543043 is about 225.9991320091. Note that the first 3 decimals are identical.

Adding to 11543043 its reverse (34034511), we get a palindrome (45577554).

The spelling of 11543043 in words is "eleven million, five hundred forty-three thousand, forty-three".