1131311792 has 40 divisors (see below), whose sum is σ = 2362755024. Its totient is φ = 521650944.

The previous prime is 1131311791. The next prime is 1131311803. The reversal of 1131311792 is 2971131311.

It is not an unprimeable number, because it can be changed into a prime (1131311791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308723 + ... + 312365.

Almost surely, 2^1131311792 is an apocalyptic number.

It is an amenable number.

1131311792 is an abundant number, since it is smaller than the sum of its proper divisors (1231443232).

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

1131311792 is a wasteful number, since it uses less digits than its factorization.

1131311792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157 (or 5151 counting only the distinct ones).

The product of its digits is 1134, while the sum is 29.

The square root of 1131311792 is about 33634.9786977783. The cubic root of 1131311792 is about 1041.9833306720.

The spelling of 1131311792 in words is "one billion, one hundred thirty-one million, three hundred eleven thousand, seven hundred ninety-two".