1131112 has 16 divisors (see below), whose sum is σ = 2245860. Its totient is φ = 532224.

The previous prime is 1131103. The next prime is 1131113. The reversal of 1131112 is 2111311.

It can be written as a sum of positive squares in 2 ways, for example, as 894916 + 236196 = 946^2 + 486^2 .

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 pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4023 + ... + 4294.

2^1131112 is an apocalyptic number.

It is an amenable number.

1131112 is a deficient number, since it is larger than the sum of its proper divisors (1114748).

1131112 is a wasteful number, since it uses less digits than its factorization.

1131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340 (or 8336 counting only the distinct ones).

The product of its digits is 6, while the sum is 10.

The square root of 1131112 is about 1063.5374934623. The cubic root of 1131112 is about 104.1921988258.

Adding to 1131112 its reverse (2111311), we get a palindrome (3242423).

It can be divided in two parts, 113 and 1112, that added together give a triangular number (1225 = T₄₉).

The spelling of 1131112 in words is "one million, one hundred thirty-one thousand, one hundred twelve".