20117471103 has 12 divisors (see below), whose sum is σ = 29059853680. Its totient is φ = 13411054656.

The previous prime is 20117471083. The next prime is 20117471117. The reversal of 20117471103 is 30117471102.

It is not a de Polignac number, because 20117471103 - 2¹⁴ = 20117454719 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 (20117471503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283950 + ... + 347652.

Almost surely, 2^20117471103 is an apocalyptic number.

20117471103 is a deficient number, since it is larger than the sum of its proper divisors (8942382577).

20117471103 is a wasteful number, since it uses less digits than its factorization.

20117471103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98798 (or 98795 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

Subtracting 20117471103 from its reverse (30117471102), we obtain a palindrome (9999999999).

The spelling of 20117471103 in words is "twenty billion, one hundred seventeen million, four hundred seventy-one thousand, one hundred three".