10101011010109 has 2 divisors, whose sum is σ = 10101011010110. Its totient is φ = 10101011010108.

The previous prime is 10101011010073. The next prime is 10101011010157. The reversal of 10101011010109 is 90101011010101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8607164837209 + 1493846172900 = 2933797^2 + 1222230^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101011010109 - 2⁷ = 10101011009981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10101011010092 and 10101011010101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10101011010179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050505505054 + 5050505505055.

It is an arithmetic number, because the mean of its divisors is an integer number (5050505505055).

Almost surely, 2^{10101011010109} is an apocalyptic number.

It is an amenable number.

10101011010109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101011010109 is an equidigital number, since it uses as much as digits as its factorization.

10101011010109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 10101011010109 in words is "ten trillion, one hundred one billion, eleven million, ten thousand, one hundred nine".