1131303 has 8 divisors (see below), whose sum is σ = 1513600. Its totient is φ = 751608.

The previous prime is 1131271. The next prime is 1131307. The reversal of 1131303 is 3031311.

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

It is not a de Polignac number, because 1131303 - 2⁵ = 1131271 is a prime.

It is a Duffinian number.

1131303 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131307) 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, 888 + ... + 1746.

It is an arithmetic number, because the mean of its divisors is an integer number (189200).

2^1131303 is an apocalyptic number.

1131303 is a deficient number, since it is larger than the sum of its proper divisors (382297).

1131303 is an equidigital number, since it uses as much as digits as its factorization.

1131303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 1131303 is about 1063.6272843435. The cubic root of 1131303 is about 104.1980631404.

Adding to 1131303 its reverse (3031311), we get a palindrome (4162614).

The spelling of 1131303 in words is "one million, one hundred thirty-one thousand, three hundred three".