1001012000189 has 2 divisors, whose sum is σ = 1001012000190. Its totient is φ = 1001012000188.

The previous prime is 1001012000179. The next prime is 1001012000221. The reversal of 1001012000189 is 9810002101001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938056172089 + 62955828100 = 968533^2 + 250910^2 .

It is an emirp because it is prime and its reverse (9810002101001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001012000189 - 2³² = 996717032893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001012000179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500506000094 + 500506000095.

It is an arithmetic number, because the mean of its divisors is an integer number (500506000095).

Almost surely, 2^{1001012000189} is an apocalyptic number.

It is an amenable number.

1001012000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001012000189 is an equidigital number, since it uses as much as digits as its factorization.

1001012000189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1001012000189 in words is "one trillion, one billion, twelve million, one hundred eighty-nine", and thus it is an aban number.