11403043 has 4 divisors (see below), whose sum is σ = 11681208. Its totient is φ = 11124880.

The previous prime is 11403017. The next prime is 11403047. The reversal of 11403043 is 34030411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11403043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11403047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139021 + ... + 139102.

It is an arithmetic number, because the mean of its divisors is an integer number (2920302).

Almost surely, 2^11403043 is an apocalyptic number.

11403043 is a deficient number, since it is larger than the sum of its proper divisors (278165).

11403043 is an equidigital number, since it uses as much as digits as its factorization.

11403043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278164.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 11403043 is about 3376.8392025680. The cubic root of 11403043 is about 225.0817349139.

Adding to 11403043 its reverse (34030411), we get a palindrome (45433454).

The spelling of 11403043 in words is "eleven million, four hundred three thousand, forty-three".