1112194020409 has 2 divisors, whose sum is σ = 1112194020410. Its totient is φ = 1112194020408.

The previous prime is 1112194020389. The next prime is 1112194020529. The reversal of 1112194020409 is 9040204912111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1104542144784 + 7651875625 = 1050972^2 + 87475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112194020409 is a prime.

It is not a weakly prime, because it can be changed into another prime (1112194029409) 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, 556097010204 + 556097010205.

It is an arithmetic number, because the mean of its divisors is an integer number (556097010205).

Almost surely, 2^{1112194020409} is an apocalyptic number.

It is an amenable number.

1112194020409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112194020409 is an equidigital number, since it uses as much as digits as its factorization.

1112194020409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 1112194020409 in words is "one trillion, one hundred twelve billion, one hundred ninety-four million, twenty thousand, four hundred nine".