201170101 has 4 divisors (see below), whose sum is σ = 219458304. Its totient is φ = 182881900.

The previous prime is 201170089. The next prime is 201170153. The reversal of 201170101 is 101071102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201170101 - 2¹¹ = 201168053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201170161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9144085 + ... + 9144106.

It is an arithmetic number, because the mean of its divisors is an integer number (54864576).

Almost surely, 2^201170101 is an apocalyptic number.

It is an amenable number.

201170101 is a deficient number, since it is larger than the sum of its proper divisors (18288203).

201170101 is a wasteful number, since it uses less digits than its factorization.

201170101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18288202.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 201170101 is about 14183.4446098259. Note that the first 3 decimals coincide. The cubic root of 201170101 is about 585.9417961038.

The spelling of 201170101 in words is "two hundred one million, one hundred seventy thousand, one hundred one".