1120198817 has 2 divisors, whose sum is σ = 1120198818. Its totient is φ = 1120198816.

The previous prime is 1120198813. The next prime is 1120198819. The reversal of 1120198817 is 7188910211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006221841 + 113976976 = 31721^2 + 10676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120198817 - 2² = 1120198813 is a prime.

It is a super-4 number, since 4×1120198817⁴ (a number of 37 digits) contains 4444 as substring.

Together with 1120198819, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1120198813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560099408 + 560099409.

It is an arithmetic number, because the mean of its divisors is an integer number (560099409).

Almost surely, 2^1120198817 is an apocalyptic number.

It is an amenable number.

1120198817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120198817 is an equidigital number, since it uses as much as digits as its factorization.

1120198817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 38.

The square root of 1120198817 is about 33469.3713266324. The cubic root of 1120198817 is about 1038.5602665023.

The spelling of 1120198817 in words is "one billion, one hundred twenty million, one hundred ninety-eight thousand, eight hundred seventeen".