12053603 has 4 divisors (see below), whose sum is σ = 12064320. Its totient is φ = 12042888.

The previous prime is 12053551. The next prime is 12053609. The reversal of 12053603 is 30635021.

12053603 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30635021 = 383 ⋅79987.

It is a cyclic number.

It is not a de Polignac number, because 12053603 - 2¹² = 12049507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12053609) 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, 3443 + ... + 5996.

It is an arithmetic number, because the mean of its divisors is an integer number (3016080).

Almost surely, 2^12053603 is an apocalyptic number.

12053603 is a deficient number, since it is larger than the sum of its proper divisors (10717).

12053603 is an equidigital number, since it uses as much as digits as its factorization.

12053603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 12053603 is about 3471.8299209495. The cubic root of 12053603 is about 229.2832317334.

Adding to 12053603 its reverse (30635021), we get a palindrome (42688624).

The spelling of 12053603 in words is "twelve million, fifty-three thousand, six hundred three".