1119861788117 has 2 divisors, whose sum is σ = 1119861788118. Its totient is φ = 1119861788116.

The previous prime is 1119861788113. The next prime is 1119861788119. The reversal of 1119861788117 is 7118871689111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010439102436 + 109422685681 = 1005206^2 + 330791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1119861788117 - 2² = 1119861788113 is a prime.

Together with 1119861788119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1119861788113) 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, 559930894058 + 559930894059.

It is an arithmetic number, because the mean of its divisors is an integer number (559930894059).

Almost surely, 2^{1119861788117} is an apocalyptic number.

It is an amenable number.

1119861788117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1119861788117 is an equidigital number, since it uses as much as digits as its factorization.

1119861788117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 59.

The spelling of 1119861788117 in words is "one trillion, one hundred nineteen billion, eight hundred sixty-one million, seven hundred eighty-eight thousand, one hundred seventeen".