1017138812189 has 2 divisors, whose sum is σ = 1017138812190. Its totient is φ = 1017138812188.

The previous prime is 1017138812153. The next prime is 1017138812203. The reversal of 1017138812189 is 9812188317101.

1017138812189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1017138812089 + 100 = 1008533^2 + 10^2 .

It is an emirp because it is prime and its reverse (9812188317101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1017138812189 - 2¹⁶ = 1017138746653 is a prime.

It is a super-2 number, since 2×1017138812189² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1017138112189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508569406094 + 508569406095.

It is an arithmetic number, because the mean of its divisors is an integer number (508569406095).

Almost surely, 2^{1017138812189} is an apocalyptic number.

It is an amenable number.

1017138812189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1017138812189 is an equidigital number, since it uses as much as digits as its factorization.

1017138812189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 50.

The spelling of 1017138812189 in words is "one trillion, seventeen billion, one hundred thirty-eight million, eight hundred twelve thousand, one hundred eighty-nine".