20102103089 has 2 divisors, whose sum is σ = 20102103090. Its totient is φ = 20102103088.

The previous prime is 20102103031. The next prime is 20102103143. The reversal of 20102103089 is 98030120102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17686872064 + 2415231025 = 132992^2 + 49145^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102103089 - 2³² = 15807135793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102103019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051051544 + 10051051545.

It is an arithmetic number, because the mean of its divisors is an integer number (10051051545).

Almost surely, 2^20102103089 is an apocalyptic number.

It is an amenable number.

20102103089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102103089 is an equidigital number, since it uses as much as digits as its factorization.

20102103089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 20102103089 in words is "twenty billion, one hundred two million, one hundred three thousand, eighty-nine".