1121127358189 has 2 divisors, whose sum is σ = 1121127358190. Its totient is φ = 1121127358188.

The previous prime is 1121127358177. The next prime is 1121127358229. The reversal of 1121127358189 is 9818537211211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844040926089 + 277086432100 = 918717^2 + 526390^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121127358189 - 2⁷ = 1121127358061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121127358489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560563679094 + 560563679095.

It is an arithmetic number, because the mean of its divisors is an integer number (560563679095).

Almost surely, 2^{1121127358189} is an apocalyptic number.

It is an amenable number.

1121127358189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121127358189 is an equidigital number, since it uses as much as digits as its factorization.

1121127358189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 49.

The spelling of 1121127358189 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-seven million, three hundred fifty-eight thousand, one hundred eighty-nine".