1131660711 has 12 divisors (see below), whose sum is σ = 1643093088. Its totient is φ = 750530304.

The previous prime is 1131660679. The next prime is 1131660727. The reversal of 1131660711 is 1170661311.

1131660711 is a `hidden beast` number, since 11 + 31 + 6 + 607 + 11 = 666.

It is not a de Polignac number, because 1131660711 - 2⁵ = 1131660679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131660911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 324015 + ... + 327488.

It is an arithmetic number, because the mean of its divisors is an integer number (136924424).

Almost surely, 2^1131660711 is an apocalyptic number.

1131660711 is a deficient number, since it is larger than the sum of its proper divisors (511432377).

1131660711 is a wasteful number, since it uses less digits than its factorization.

1131660711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651702 (or 651699 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1131660711 is about 33640.1651452546. The cubic root of 1131660711 is about 1042.0904424378.

It can be divided in two parts, 11316 and 60711, that added together give a palindrome (72027).

The spelling of 1131660711 in words is "one billion, one hundred thirty-one million, six hundred sixty thousand, seven hundred eleven".