20103011017 has 4 divisors (see below), whose sum is σ = 20103630336. Its totient is φ = 20102391700.

The previous prime is 20103010943. The next prime is 20103011023. The reversal of 20103011017 is 71011030102.

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 a de Polignac number, because none of the positive numbers 2^k-20103011017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103011917) 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, 258109 + ... + 326842.

It is an arithmetic number, because the mean of its divisors is an integer number (5025907584).

Almost surely, 2^20103011017 is an apocalyptic number.

It is an amenable number.

20103011017 is a deficient number, since it is larger than the sum of its proper divisors (619319).

20103011017 is an equidigital number, since it uses as much as digits as its factorization.

20103011017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619318.

The product of its (nonzero) digits is 42, while the sum is 16.

Adding to 20103011017 its reverse (71011030102), we get a palindrome (91114041119).

The spelling of 20103011017 in words is "twenty billion, one hundred three million, eleven thousand, seventeen".