1120198897 has 2 divisors, whose sum is σ = 1120198898. Its totient is φ = 1120198896.

The previous prime is 1120198883. The next prime is 1120198931. The reversal of 1120198897 is 7988910211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 862949376 + 257249521 = 29376^2 + 16039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120198897 - 2⁷ = 1120198769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120198817) 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, 560099448 + 560099449.

It is an arithmetic number, because the mean of its divisors is an integer number (560099449).

Almost surely, 2^1120198897 is an apocalyptic number.

It is an amenable number.

1120198897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120198897 is an equidigital number, since it uses as much as digits as its factorization.

1120198897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 46.

The square root of 1120198897 is about 33469.3725217549. The cubic root of 1120198897 is about 1038.5602912256.

The spelling of 1120198897 in words is "one billion, one hundred twenty million, one hundred ninety-eight thousand, eight hundred ninety-seven".