1131144112 has 40 divisors (see below), whose sum is σ = 2557979136. Its totient is φ = 474459456.

The previous prime is 1131144067. The next prime is 1131144173. The reversal of 1131144112 is 2114411311.

It is a super-2 number, since 2×1131144112² = 2558974004224537088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131144112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102178 + ... + 112705.

Almost surely, 2^1131144112 is an apocalyptic number.

It is an amenable number.

1131144112 is an abundant number, since it is smaller than the sum of its proper divisors (1426835024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131144112 is a wasteful number, since it uses less digits than its factorization.

1131144112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214945 (or 214939 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 1131144112 is about 33632.4859622360. The cubic root of 1131144112 is about 1041.9318481368.

Adding to 1131144112 its reverse (2114411311), we get a palindrome (3245555423).

The spelling of 1131144112 in words is "one billion, one hundred thirty-one million, one hundred forty-four thousand, one hundred twelve".