1189001888273 has 2 divisors, whose sum is σ = 1189001888274. Its totient is φ = 1189001888272.

The previous prime is 1189001888237. The next prime is 1189001888297. The reversal of 1189001888273 is 3728881009811.

Together with previous prime (1189001888237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906555345424 + 282446542849 = 952132^2 + 531457^2 .

It is a cyclic number.

It is not a de Polignac number, because 1189001888273 - 2⁶ = 1189001888209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1189001888873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594500944136 + 594500944137.

It is an arithmetic number, because the mean of its divisors is an integer number (594500944137).

Almost surely, 2^{1189001888273} is an apocalyptic number.

It is an amenable number.

1189001888273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189001888273 is an equidigital number, since it uses as much as digits as its factorization.

1189001888273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 56.

The spelling of 1189001888273 in words is "one trillion, one hundred eighty-nine billion, one million, eight hundred eighty-eight thousand, two hundred seventy-three".