100173203127 has 12 divisors (see below), whose sum is σ = 144832313704. Its totient is φ = 66718587600.

The previous prime is 100173203089. The next prime is 100173203209. The reversal of 100173203127 is 721302371001.

100173203127 is a `hidden beast` number, since 10 + 0 + 17 + 320 + 312 + 7 = 666.

It is not a de Polignac number, because 100173203127 - 2¹⁹ = 100172678839 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 100173203127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100173208127) 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, 5285668 + ... + 5304585.

Almost surely, 2^100173203127 is an apocalyptic number.

100173203127 is a deficient number, since it is larger than the sum of its proper divisors (44659110577).

100173203127 is a wasteful number, since it uses less digits than its factorization.

100173203127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10591310 (or 10591307 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

Adding to 100173203127 its reverse (721302371001), we get a palindrome (821475574128).

The spelling of 100173203127 in words is "one hundred billion, one hundred seventy-three million, two hundred three thousand, one hundred twenty-seven".