101101109999909 has 2 divisors, whose sum is σ = 101101109999910. Its totient is φ = 101101109999908.

The previous prime is 101101109999891. The next prime is 101101109999933. The reversal of 101101109999909 is 909999901101101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91102252562500 + 9998857437409 = 9544750^2 + 3162097^2 .

It is a cyclic number.

It is not a de Polignac number, because 101101109999909 - 2²⁰ = 101101108951333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101101109999969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550554999954 + 50550554999955.

It is an arithmetic number, because the mean of its divisors is an integer number (50550554999955).

Almost surely, 2^{101101109999909} is an apocalyptic number.

It is an amenable number.

101101109999909 is a deficient number, since it is larger than the sum of its proper divisors (1).

101101109999909 is an equidigital number, since it uses as much as digits as its factorization.

101101109999909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 531441, while the sum is 59.

The spelling of 101101109999909 in words is "one hundred one trillion, one hundred one billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred nine".