983121121189 has 2 divisors, whose sum is σ = 983121121190. Its totient is φ = 983121121188.

The previous prime is 983121121163. The next prime is 983121121207. The reversal of 983121121189 is 981121121389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 976110408289 + 7010712900 = 987983^2 + 83730^2 .

It is a cyclic number.

It is not a de Polignac number, because 983121121189 - 2⁷ = 983121121061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983121121159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491560560594 + 491560560595.

It is an arithmetic number, because the mean of its divisors is an integer number (491560560595).

Almost surely, 2^983121121189 is an apocalyptic number.

It is an amenable number.

983121121189 is a deficient number, since it is larger than the sum of its proper divisors (1).

983121121189 is an equidigital number, since it uses as much as digits as its factorization.

983121121189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 46.

The spelling of 983121121189 in words is "nine hundred eighty-three billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eighty-nine".