11431443 has 4 divisors (see below), whose sum is σ = 15241928. Its totient is φ = 7620960.

The previous prime is 11431403. The next prime is 11431447. The reversal of 11431443 is 34413411.

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

It is not a de Polignac number, because 11431443 - 2¹⁷ = 11300371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431447) 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, 1905238 + ... + 1905243.

It is an arithmetic number, because the mean of its divisors is an integer number (3810482).

Almost surely, 2^11431443 is an apocalyptic number.

11431443 is a deficient number, since it is larger than the sum of its proper divisors (3810485).

11431443 is an equidigital number, since it uses as much as digits as its factorization.

11431443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810484.

The product of its digits is 576, while the sum is 21.

The square root of 11431443 is about 3381.0417033808. The cubic root of 11431443 is about 225.2684400994.

Adding to 11431443 its reverse (34413411), we get a palindrome (45844854).

The spelling of 11431443 in words is "eleven million, four hundred thirty-one thousand, four hundred forty-three".