1131204112 has 10 divisors (see below), whose sum is σ = 2191707998. Its totient is φ = 565602048.

The previous prime is 1131204097. The next prime is 1131204119. The reversal of 1131204112 is 2114021311.

It can be written as a sum of positive squares in only one way, i.e., 676832256 + 454371856 = 26016^2 + 21316^2 .

It is a super-3 number, since 3×1131204112³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 70700257 = 1131204112 / (1 + 1 + 3 + 1 + 2 + 0 + 4 + 1 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (1131204119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35350113 + ... + 35350144.

Almost surely, 2^1131204112 is an apocalyptic number.

It is an amenable number.

1131204112 is a deficient number, since it is larger than the sum of its proper divisors (1060503886).

1131204112 is an equidigital number, since it uses as much as digits as its factorization.

1131204112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70700265 (or 70700259 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1131204112 is about 33633.3779451306. The cubic root of 1131204112 is about 1041.9502704300.

Adding to 1131204112 its reverse (2114021311), we get a palindrome (3245225423).

The spelling of 1131204112 in words is "one billion, one hundred thirty-one million, two hundred four thousand, one hundred twelve".