11820053 has 4 divisors (see below), whose sum is σ = 13508640. Its totient is φ = 10131468.

The previous prime is 11820047. The next prime is 11820079. The reversal of 11820053 is 35002811.

11820053 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, and also an emirpimes, since its reverse is a distinct semiprime: 35002811 = 1163 ⋅30097.

It is a cyclic number.

It is not a de Polignac number, because 11820053 - 2⁴ = 11820037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11825053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844283 + ... + 844296.

It is an arithmetic number, because the mean of its divisors is an integer number (3377160).

Almost surely, 2^11820053 is an apocalyptic number.

It is an amenable number.

11820053 is a deficient number, since it is larger than the sum of its proper divisors (1688587).

11820053 is an equidigital number, since it uses as much as digits as its factorization.

11820053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688586.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 11820053 is about 3438.0303954445. The cubic root of 11820053 is about 227.7927029857.

Adding to 11820053 its reverse (35002811), we get a palindrome (46822864).

The spelling of 11820053 in words is "eleven million, eight hundred twenty thousand, fifty-three".