11424143 has 4 divisors (see below), whose sum is σ = 11434080. Its totient is φ = 11414208.

The previous prime is 11424137. The next prime is 11424209. The reversal of 11424143 is 34142411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11424143 is a prime.

It is a super-2 number, since 2×11424143² = 261022086568898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421143) 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, 2978 + ... + 5631.

It is an arithmetic number, because the mean of its divisors is an integer number (2858520).

Almost surely, 2^11424143 is an apocalyptic number.

11424143 is a deficient number, since it is larger than the sum of its proper divisors (9937).

11424143 is an equidigital number, since it uses as much as digits as its factorization.

11424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9936.

The product of its digits is 384, while the sum is 20.

The square root of 11424143 is about 3379.9619820347. The cubic root of 11424143 is about 225.2204785317.

Adding to 11424143 its reverse (34142411), we get a palindrome (45566554).

The spelling of 11424143 in words is "eleven million, four hundred twenty-four thousand, one hundred forty-three".