11123003 has 4 divisors (see below), whose sum is σ = 11136840. Its totient is φ = 11109168.

The previous prime is 11122997. The next prime is 11123009. The reversal of 11123003 is 30032111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30032111 = 167 ⋅179833.

It is an interprime number because it is at equal distance from previous prime (11122997) and next prime (11123009).

It is a cyclic number.

It is not a de Polignac number, because 11123003 - 2⁴ = 11122987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123009) 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, 5633 + ... + 7346.

It is an arithmetic number, because the mean of its divisors is an integer number (2784210).

Almost surely, 2^11123003 is an apocalyptic number.

11123003 is a deficient number, since it is larger than the sum of its proper divisors (13837).

11123003 is an equidigital number, since it uses as much as digits as its factorization.

11123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 11123003 is about 3335.1166396395. The cubic root of 11123003 is about 223.2238965328.

Adding to 11123003 its reverse (30032111), we get a palindrome (41155114).

The spelling of 11123003 in words is "eleven million, one hundred twenty-three thousand, three".