12811203 has 12 divisors (see below), whose sum is σ = 19190808. Its totient is φ = 8540640.

The previous prime is 12811189. The next prime is 12811223. The reversal of 12811203 is 30211821.

It is not a de Polignac number, because 12811203 - 2¹² = 12807107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12811223) 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, 26118 + ... + 26603.

It is an arithmetic number, because the mean of its divisors is an integer number (1599234).

Almost surely, 2^12811203 is an apocalyptic number.

12811203 is a deficient number, since it is larger than the sum of its proper divisors (6379605).

12811203 is an frugal number, since it uses more digits than its factorization.

12811203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52736 (or 52724 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 12811203 is about 3579.2740884151. The cubic root of 12811203 is about 233.9896445121.

The spelling of 12811203 in words is "twelve million, eight hundred eleven thousand, two hundred three".