1131130312 has 16 divisors (see below), whose sum is σ = 2284013340. Its totient is φ = 522060096.

The previous prime is 1131130307. The next prime is 1131130313. The reversal of 1131130312 is 2130311311.

It can be written as a sum of positive squares in 2 ways, for example, as 830246596 + 300883716 = 28814^2 + 17346^2 .

It is not an unprimeable number, because it can be changed into a prime (1131130313) 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, 5438023 + ... + 5438230.

Almost surely, 2^1131130312 is an apocalyptic number.

It is an amenable number.

1131130312 is an abundant number, since it is smaller than the sum of its proper divisors (1152883028).

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

1131130312 is a wasteful number, since it uses less digits than its factorization.

1131130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10876272 (or 10876268 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1131130312 is about 33632.2808028239. The cubic root of 1131130312 is about 1041.9276109172.

Adding to 1131130312 its reverse (2130311311), we get a palindrome (3261441623).

The spelling of 1131130312 in words is "one billion, one hundred thirty-one million, one hundred thirty thousand, three hundred twelve".