1131065712 has 60 divisors (see below), whose sum is σ = 3617618160. Its totient is φ = 323161344.

The previous prime is 1131065707. The next prime is 1131065791. The reversal of 1131065712 is 2175601311.

1131065712 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 0 + 657 + 1 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560037 + ... + 562052.

It is an arithmetic number, because the mean of its divisors is an integer number (60293636).

Almost surely, 2^1131065712 is an apocalyptic number.

1131065712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131065712 is an abundant number, since it is smaller than the sum of its proper divisors (2486552448).

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

1131065712 is a wasteful number, since it uses less digits than its factorization.

1131065712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122110 (or 1122101 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1131065712 is about 33631.3204022679. The cubic root of 1131065712 is about 1041.9077753585.

The spelling of 1131065712 in words is "one billion, one hundred thirty-one million, sixty-five thousand, seven hundred twelve".