13811203 has 8 divisors (see below), whose sum is σ = 15817472. Its totient is φ = 11813256.

The previous prime is 13811183. The next prime is 13811207. The reversal of 13811203 is 30211831.

13811203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13811203 - 2⁹ = 13810691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13811207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026 + ... + 5632.

It is an arithmetic number, because the mean of its divisors is an integer number (1977184).

Almost surely, 2^13811203 is an apocalyptic number.

13811203 is a deficient number, since it is larger than the sum of its proper divisors (2006269).

13811203 is an equidigital number, since it uses as much as digits as its factorization.

13811203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 13811203 is about 3716.3426914105. The cubic root of 13811203 is about 239.9259204236.

The spelling of 13811203 in words is "thirteen million, eight hundred eleven thousand, two hundred three".