11271203 has 4 divisors (see below), whose sum is σ = 11533368. Its totient is φ = 11009040.

The previous prime is 11271193. The next prime is 11271223. The reversal of 11271203 is 30217211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30217211 = 17 ⋅1777483.

It is a cyclic number.

It is not a de Polignac number, because 11271203 - 2¹⁴ = 11254819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11271223) 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, 131018 + ... + 131103.

It is an arithmetic number, because the mean of its divisors is an integer number (2883342).

Almost surely, 2^11271203 is an apocalyptic number.

11271203 is a deficient number, since it is larger than the sum of its proper divisors (262165).

11271203 is an equidigital number, since it uses as much as digits as its factorization.

11271203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262164.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 11271203 is about 3357.2612349950. The cubic root of 11271203 is about 224.2109182059.

Adding to 11271203 its reverse (30217211), we get a palindrome (41488414).

The spelling of 11271203 in words is "eleven million, two hundred seventy-one thousand, two hundred three".