11051 has 4 divisors (see below), whose sum is σ = 11352. Its totient is φ = 10752.

The previous prime is 11047. The next prime is 11057. The reversal of 11051 is 15011.

It is a happy number.

11051 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 an emirpimes, since its reverse is a distinct semiprime: 15011 = 17 ⋅883.

It is a cyclic number.

It is not a de Polignac number, because 11051 - 2² = 11047 is a prime.

11051 is an undulating number in base 16.

It is not an unprimeable number, because it can be changed into a prime (11057) 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, 86 + ... + 171.

It is an arithmetic number, because the mean of its divisors is an integer number (2838).

2¹¹⁰⁵¹ is an apocalyptic number.

11051 is the 86-th pentagonal number.

11051 is a deficient number, since it is larger than the sum of its proper divisors (301).

11051 is an equidigital number, since it uses as much as digits as its factorization.

11051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 5, while the sum is 8.

The square root of 11051 is about 105.1237366155. The cubic root of 11051 is about 22.2741185253.

Adding to 11051 its reverse (15011), we get a palindrome (26062).

It can be divided in two parts, 110 and 51, that added together give a palindrome (161).

The spelling of 11051 in words is "eleven thousand, fifty-one".