1120198813 has 2 divisors, whose sum is σ = 1120198814. Its totient is φ = 1120198812.

The previous prime is 1120198771. The next prime is 1120198817. The reversal of 1120198813 is 3188910211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1016525689 + 103673124 = 31883^2 + 10182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120198813 - 2²¹ = 1118101661 is a prime.

It is a congruent number.

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, 560099406 + 560099407.

It is an arithmetic number, because the mean of its divisors is an integer number (560099407).

Almost surely, 2^1120198813 is an apocalyptic number.

It is an amenable number.

1120198813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120198813 is an equidigital number, since it uses as much as digits as its factorization.

1120198813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 1120198813 is about 33469.3712668762. The cubic root of 1120198813 is about 1038.5602652662.

The spelling of 1120198813 in words is "one billion, one hundred twenty million, one hundred ninety-eight thousand, eight hundred thirteen".