10101109 has 2 divisors, whose sum is σ = 10101110. Its totient is φ = 10101108.

The previous prime is 10101101. The next prime is 10101137. The reversal of 10101109 is 90110101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6502500 + 3598609 = 2550^2 + 1897^2 .

It is an emirp because it is prime and its reverse (90110101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10101109 - 2³ = 10101101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10101101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050554 + 5050555.

It is an arithmetic number, because the mean of its divisors is an integer number (5050555).

Almost surely, 2^10101109 is an apocalyptic number.

It is an amenable number.

10101109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101109 is an equidigital number, since it uses as much as digits as its factorization.

10101109 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 13.

The square root of 10101109 is about 3178.2241897009. The cubic root of 10101109 is about 216.1671445756.

The spelling of 10101109 in words is "ten million, one hundred one thousand, one hundred nine".