1116973121 has 16 divisors (see below), whose sum is σ = 1324032000. Its totient is φ = 930949200.

The previous prime is 1116973111. The next prime is 1116973163. The reversal of 1116973121 is 1213796111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1116973121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116973111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79721 + ... + 92678.

It is an arithmetic number, because the mean of its divisors is an integer number (82752000).

Almost surely, 2^1116973121 is an apocalyptic number.

1116973121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1116973121 is a deficient number, since it is larger than the sum of its proper divisors (207058879).

1116973121 is a wasteful number, since it uses less digits than its factorization.

1116973121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172460.

The product of its digits is 2268, while the sum is 32.

The square root of 1116973121 is about 33421.1478109295. The cubic root of 1116973121 is about 1037.5624375449.

The spelling of 1116973121 in words is "one billion, one hundred sixteen million, nine hundred seventy-three thousand, one hundred twenty-one".