1131322310649 has 24 divisors (see below), whose sum is σ = 1689633927072. Its totient is φ = 728942546880.

The previous prime is 1131322310647. The next prime is 1131322310659. The reversal of 1131322310649 is 9460132231311.

1131322310649 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 3 + 2 + 2 + 3 + 1 + 0 + 649 = 666.

It is not a de Polignac number, because 1131322310649 - 2¹ = 1131322310647 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131322310641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14287219 + ... + 14366184.

It is an arithmetic number, because the mean of its divisors is an integer number (70401413628).

Almost surely, 2^{1131322310649} is an apocalyptic number.

It is an amenable number.

1131322310649 is a deficient number, since it is larger than the sum of its proper divisors (558311616423).

1131322310649 is a wasteful number, since it uses less digits than its factorization.

1131322310649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653557 (or 28653554 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 1131322310649 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-two million, three hundred ten thousand, six hundred forty-nine".