11543443 has 2 divisors, whose sum is σ = 11543444. Its totient is φ = 11543442.

The previous prime is 11543437. The next prime is 11543491. The reversal of 11543443 is 34434511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11543443 - 2⁹ = 11542931 is a prime.

It is not a weakly prime, because it can be changed into another prime (11543423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771721 + 5771722.

It is an arithmetic number, because the mean of its divisors is an integer number (5771722).

Almost surely, 2^11543443 is an apocalyptic number.

11543443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543443 is an equidigital number, since it uses as much as digits as its factorization.

11543443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 11543443 is about 3397.5642745944. The cubic root of 11543443 is about 226.0017424879.

Adding to 11543443 its reverse (34434511), we get a palindrome (45977954).

The spelling of 11543443 in words is "eleven million, five hundred forty-three thousand, four hundred forty-three".