20001011089 has 2 divisors, whose sum is σ = 20001011090. Its totient is φ = 20001011088.

The previous prime is 20001011021. The next prime is 20001011141. The reversal of 20001011089 is 98011010002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14374811025 + 5626200064 = 119895^2 + 75008^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001011089 - 2⁹ = 20001010577 is a prime.

It is not a weakly prime, because it can be changed into another prime (20004011089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000505544 + 10000505545.

It is an arithmetic number, because the mean of its divisors is an integer number (10000505545).

Almost surely, 2^20001011089 is an apocalyptic number.

It is an amenable number.

20001011089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001011089 is an equidigital number, since it uses as much as digits as its factorization.

20001011089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 20001011089 in words is "twenty billion, one million, eleven thousand, eighty-nine".