1011200020189 has 2 divisors, whose sum is σ = 1011200020190. Its totient is φ = 1011200020188.

The previous prime is 1011200020151. The next prime is 1011200020223. The reversal of 1011200020189 is 9810200021101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 925988572089 + 85211448100 = 962283^2 + 291910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011200020189 - 2²⁹ = 1010663149277 is a prime.

It is a super-3 number, since 3×1011200020189³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011200020489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505600010094 + 505600010095.

It is an arithmetic number, because the mean of its divisors is an integer number (505600010095).

Almost surely, 2^{1011200020189} is an apocalyptic number.

It is an amenable number.

1011200020189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011200020189 is an equidigital number, since it uses as much as digits as its factorization.

1011200020189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 1011200020189 in words is "one trillion, eleven billion, two hundred million, twenty thousand, one hundred eighty-nine".