20171924101 has 8 divisors (see below), whose sum is σ = 23200467200. Its totient is φ = 17180090928.

The previous prime is 20171924083. The next prime is 20171924111. The reversal of 20171924101 is 10142917102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20171924101 - 2⁹ = 20171923589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20171924101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20171924111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9176301 + ... + 9178498.

It is an arithmetic number, because the mean of its divisors is an integer number (2900058400).

Almost surely, 2^20171924101 is an apocalyptic number.

It is an amenable number.

20171924101 is a deficient number, since it is larger than the sum of its proper divisors (3028543099).

20171924101 is a wasteful number, since it uses less digits than its factorization.

20171924101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18354963.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 20171924101 in words is "twenty billion, one hundred seventy-one million, nine hundred twenty-four thousand, one hundred one".