11023 has 4 divisors (see below), whose sum is σ = 11248. Its totient is φ = 10800.

The previous prime is 11003. The next prime is 11027. The reversal of 11023 is 32011.

11023 is nontrivially palindromic in base 3.

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-11023 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 10997 and 11015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11027) 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, 3 + ... + 148.

It is an arithmetic number, because the mean of its divisors is an integer number (2812).

2¹¹⁰²³ is an apocalyptic number.

11023 is a deficient number, since it is larger than the sum of its proper divisors (225).

11023 is an equidigital number, since it uses as much as digits as its factorization.

11023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 11023 is about 104.9904757585. The cubic root of 11023 is about 22.2552905822.

Adding to 11023 its reverse (32011), we get a palindrome (43034).

It can be divided in two parts, 1 and 1023, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 11023 in words is "eleven thousand, twenty-three", and thus it is an iban number.