20100017 has 8 divisors (see below), whose sum is σ = 23073600. Its totient is φ = 17151984.

The previous prime is 20099983. The next prime is 20100023. The reversal of 20100017 is 71000102.

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 20100017 - 2¹⁰ = 20098993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20099980 and 20100007.

It is not an unprimeable number, because it can be changed into a prime (20100097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4667 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (2884200).

Almost surely, 2^20100017 is an apocalyptic number.

It is an amenable number.

20100017 is a deficient number, since it is larger than the sum of its proper divisors (2973583).

20100017 is a wasteful number, since it uses less digits than its factorization.

20100017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 20100017 is about 4483.3042502155. The cubic root of 20100017 is about 271.8934893314.

Adding to 20100017 its reverse (71000102), we get a palindrome (91100119).

The spelling of 20100017 in words is "twenty million, one hundred thousand, seventeen".