11042403 has 16 divisors (see below), whose sum is σ = 15165696. Its totient is φ = 7143840.

The previous prime is 11042399. The next prime is 11042413. The reversal of 11042403 is 30424011.

It is not a de Polignac number, because 11042403 - 2² = 11042399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11042413) 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 15 ways as a sum of consecutive naturals, for example, 14826 + ... + 15552.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 2^11042403 is an apocalyptic number.

11042403 is a deficient number, since it is larger than the sum of its proper divisors (4123293).

11042403 is an equidigital number, since it uses as much as digits as its factorization.

11042403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11042403 is about 3323.0111344983. The cubic root of 11042403 is about 222.6834106097.

Adding to 11042403 its reverse (30424011), we get a palindrome (41466414).

The spelling of 11042403 in words is "eleven million, forty-two thousand, four hundred three".