20103673643171 has 4 divisors (see below), whose sum is σ = 20105127390000. Its totient is φ = 20102219896344.

The previous prime is 20103673643167. The next prime is 20103673643203. The reversal of 20103673643171 is 17134637630102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20103673643171 - 2² = 20103673643167 is a prime.

It is a super-2 number, since 2×20103673643171² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103673645171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726852671 + ... + 726880328.

It is an arithmetic number, because the mean of its divisors is an integer number (5026281847500).

Almost surely, 2^{20103673643171} is an apocalyptic number.

20103673643171 is a deficient number, since it is larger than the sum of its proper divisors (1453746829).

20103673643171 is a wasteful number, since it uses less digits than its factorization.

20103673643171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453746828.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 20103673643171 in words is "twenty trillion, one hundred three billion, six hundred seventy-three million, six hundred forty-three thousand, one hundred seventy-one".