1020202010189 has 2 divisors, whose sum is σ = 1020202010190. Its totient is φ = 1020202010188.

The previous prime is 1020202010131. The next prime is 1020202010239. The reversal of 1020202010189 is 9810102020201.

1020202010189 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., 1017844907689 + 2357102500 = 1008883^2 + 48550^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020202010189 - 2¹² = 1020202006093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020202012189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510101005094 + 510101005095.

It is an arithmetic number, because the mean of its divisors is an integer number (510101005095).

Almost surely, 2^{1020202010189} is an apocalyptic number.

It is an amenable number.

1020202010189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020202010189 is an equidigital number, since it uses as much as digits as its factorization.

1020202010189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 1020202010189 in words is "one trillion, twenty billion, two hundred two million, ten thousand, one hundred eighty-nine".