11129 has 4 divisors (see below), whose sum is σ = 11520. Its totient is φ = 10740.

The previous prime is 11119. The next prime is 11131. The reversal of 11129 is 92111.

11129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11129 - 2⁴ = 11113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10 and base 15.

It is not an unprimeable number, because it can be changed into a prime (11119) 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, 149 + ... + 210.

It is an arithmetic number, because the mean of its divisors is an integer number (2880).

2¹¹¹²⁹ is an apocalyptic number.

It is an amenable number.

11129 is a deficient number, since it is larger than the sum of its proper divisors (391).

11129 is an equidigital number, since it uses as much as digits as its factorization.

11129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390.

The product of its digits is 18, while the sum is 14.

The square root of 11129 is about 105.4940756630. The cubic root of 11129 is about 22.3264006600.

Subtracting from 11129 its product of digits (18), we obtain a palindrome (11111).

The spelling of 11129 in words is "eleven thousand, one hundred twenty-nine".