20043110189 has 2 divisors, whose sum is σ = 20043110190. Its totient is φ = 20043110188.

The previous prime is 20043110183. The next prime is 20043110231. The reversal of 20043110189 is 98101134002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20030740900 + 12369289 = 141530^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 20043110189 - 2⁴ = 20043110173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20043110183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021555094 + 10021555095.

It is an arithmetic number, because the mean of its divisors is an integer number (10021555095).

Almost surely, 2^20043110189 is an apocalyptic number.

It is an amenable number.

20043110189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20043110189 is an equidigital number, since it uses as much as digits as its factorization.

20043110189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 20043110189 in words is "twenty billion, forty-three million, one hundred ten thousand, one hundred eighty-nine".