1128321387173 has 16 divisors (see below), whose sum is σ = 1208072022720. Its totient is φ = 1050677122176.

The previous prime is 1128321387121. The next prime is 1128321387229. The reversal of 1128321387173 is 3717831238211.

It is not a de Polignac number, because 1128321387173 - 2⁸ = 1128321386917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128321387103) 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 15 ways as a sum of consecutive naturals, for example, 387986 + ... + 1551507.

It is an arithmetic number, because the mean of its divisors is an integer number (75504501420).

Almost surely, 2^{1128321387173} is an apocalyptic number.

It is an amenable number.

1128321387173 is a deficient number, since it is larger than the sum of its proper divisors (79750635547).

1128321387173 is a wasteful number, since it uses less digits than its factorization.

1128321387173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940036.

The product of its digits is 338688, while the sum is 47.

The spelling of 1128321387173 in words is "one trillion, one hundred twenty-eight billion, three hundred twenty-one million, three hundred eighty-seven thousand, one hundred seventy-three".