1131118 has 4 divisors (see below), whose sum is σ = 1696680. Its totient is φ = 565558.

The previous prime is 1131113. The next prime is 1131121. The reversal of 1131118 is 8111311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8111311 = 13 ⋅623947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282778 + ... + 282781.

It is an arithmetic number, because the mean of its divisors is an integer number (424170).

2^1131118 is an apocalyptic number.

1131118 is a deficient number, since it is larger than the sum of its proper divisors (565562).

1131118 is an equidigital number, since it uses as much as digits as its factorization.

1131118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565561.

The product of its digits is 24, while the sum is 16.

The square root of 1131118 is about 1063.5403142336. The cubic root of 1131118 is about 104.1923830551.

Adding to 1131118 its reverse (8111311), we get a palindrome (9242429).

The spelling of 1131118 in words is "one million, one hundred thirty-one thousand, one hundred eighteen".