1100145979717 has 2 divisors, whose sum is σ = 1100145979718. Its totient is φ = 1100145979716.

The previous prime is 1100145979703. The next prime is 1100145979733. The reversal of 1100145979717 is 7179795410011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1038668760801 + 61477218916 = 1019151^2 + 247946^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100145979717 - 2²³ = 1100137591109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100145979787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550072989858 + 550072989859.

It is an arithmetic number, because the mean of its divisors is an integer number (550072989859).

Almost surely, 2^{1100145979717} is an apocalyptic number.

It is an amenable number.

1100145979717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100145979717 is an equidigital number, since it uses as much as digits as its factorization.

1100145979717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 52.

The spelling of 1100145979717 in words is "one trillion, one hundred billion, one hundred forty-five million, nine hundred seventy-nine thousand, seven hundred seventeen".