10011010109 has 4 divisors (see below), whose sum is σ = 10014220860. Its totient is φ = 10007799360.

The previous prime is 10011010103. The next prime is 10011010129. The reversal of 10011010109 is 90101011001.

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 101404900 + 9909605209 = 10070^2 + 99547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10011010109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011010093 and 10011010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011010103) 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, 1600694 + ... + 1606935.

It is an arithmetic number, because the mean of its divisors is an integer number (2503555215).

Almost surely, 2^10011010109 is an apocalyptic number.

It is an amenable number.

10011010109 is a deficient number, since it is larger than the sum of its proper divisors (3210751).

10011010109 is an equidigital number, since it uses as much as digits as its factorization.

10011010109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210750.

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

The spelling of 10011010109 in words is "ten billion, eleven million, ten thousand, one hundred nine".