201010109 has 8 divisors (see below), whose sum is σ = 204642720. Its totient is φ = 197385136.

The previous prime is 201010097. The next prime is 201010123. The reversal of 201010109 is 901010102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201010109 - 2²⁰ = 199961533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201010093 and 201010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88739 + ... + 90975.

It is an arithmetic number, because the mean of its divisors is an integer number (25580340).

Almost surely, 2^201010109 is an apocalyptic number.

It is an amenable number.

201010109 is a deficient number, since it is larger than the sum of its proper divisors (3632611).

201010109 is a wasteful number, since it uses less digits than its factorization.

201010109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 201010109 is about 14177.8033912168. The cubic root of 201010109 is about 585.7864203586.

The spelling of 201010109 in words is "two hundred one million, ten thousand, one hundred nine".