10010101109 has 4 divisors (see below), whose sum is σ = 10598930604. Its totient is φ = 9421271616.

The previous prime is 10010101103. The next prime is 10010101121. The reversal of 10010101109 is 90110101001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5561878084 + 4448223025 = 74578^2 + 66695^2 .

It is not a de Polignac number, because 10010101109 - 2⁴ = 10010101093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10010101093 and 10010101102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010101103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294414722 + ... + 294414755.

It is an arithmetic number, because the mean of its divisors is an integer number (2649732651).

Almost surely, 2^10010101109 is an apocalyptic number.

It is an amenable number.

10010101109 is a deficient number, since it is larger than the sum of its proper divisors (588829495).

10010101109 is an equidigital number, since it uses as much as digits as its factorization.

10010101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588829494.

The product of its (nonzero) digits is 9, while the sum is 14.

The spelling of 10010101109 in words is "ten billion, ten million, one hundred one thousand, one hundred nine".