12101803 has 12 divisors (see below), whose sum is σ = 14599920. Its totient is φ = 9824976.

The previous prime is 12101801. The next prime is 12101809. The reversal of 12101803 is 30810121.

12101803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12101803 - 2¹ = 12101801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133 + ... + 4921.

It is an arithmetic number, because the mean of its divisors is an integer number (1216660).

Almost surely, 2^12101803 is an apocalyptic number.

12101803 is a deficient number, since it is larger than the sum of its proper divisors (2498117).

12101803 is an equidigital number, since it uses as much as digits as its factorization.

12101803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4834 (or 4815 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 12101803 is about 3478.7645795598. The cubic root of 12101803 is about 229.5884448591.

Adding to 12101803 its reverse (30810121), we get a palindrome (42911924).

The spelling of 12101803 in words is "twelve million, one hundred one thousand, eight hundred three".