1109291660812 has 24 divisors (see below), whose sum is σ = 2103253414416. Its totient is φ = 509879612928.

The previous prime is 1109291660809. The next prime is 1109291660821. The reversal of 1109291660812 is 2180661929011.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189684433 + ... + 189690280.

It is an arithmetic number, because the mean of its divisors is an integer number (87635558934).

Almost surely, 2^{1109291660812} is an apocalyptic number.

It is an amenable number.

1109291660812 is a deficient number, since it is larger than the sum of its proper divisors (993961753604).

1109291660812 is a wasteful number, since it uses less digits than its factorization.

1109291660812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379374777 (or 379374775 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 1109291660812 in words is "one trillion, one hundred nine billion, two hundred ninety-one million, six hundred sixty thousand, eight hundred twelve".