1131203 has 8 divisors (see below), whose sum is σ = 1232400. Its totient is φ = 1034208.

The previous prime is 1131191. The next prime is 1131217. The reversal of 1131203 is 3021311.

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

It is not a de Polignac number, because 1131203 - 2⁶ = 1131139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223) 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, 476 + ... + 1577.

It is an arithmetic number, because the mean of its divisors is an integer number (154050).

2^1131203 is an apocalyptic number.

1131203 is a deficient number, since it is larger than the sum of its proper divisors (101197).

1131203 is a wasteful number, since it uses less digits than its factorization.

1131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1131203 is about 1063.5802743564. The cubic root of 1131203 is about 104.1949929009.

Adding to 1131203 its reverse (3021311), we get a palindrome (4152514).

The spelling of 1131203 in words is "one million, one hundred thirty-one thousand, two hundred three".