11131303 has 4 divisors (see below), whose sum is σ = 11138688. Its totient is φ = 11123920.

The previous prime is 11131279. The next prime is 11131327. The reversal of 11131303 is 30313111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30313111 = 313 ⋅96847.

It is an interprime number because it is at equal distance from previous prime (11131279) and next prime (11131327).

It is a cyclic number.

It is not a de Polignac number, because 11131303 - 2⁵ = 11131271 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 (11101303) 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, 526 + ... + 4747.

It is an arithmetic number, because the mean of its divisors is an integer number (2784672).

Almost surely, 2^11131303 is an apocalyptic number.

11131303 is a deficient number, since it is larger than the sum of its proper divisors (7385).

11131303 is an equidigital number, since it uses as much as digits as its factorization.

11131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 11131303 is about 3336.3607418863. The cubic root of 11131303 is about 223.2794060533.

Adding to 11131303 its reverse (30313111), we get a palindrome (41444414).

The spelling of 11131303 in words is "eleven million, one hundred thirty-one thousand, three hundred three".