100512171573 has 8 divisors (see below), whose sum is σ = 146199522336. Its totient is φ = 60916467600.

The previous prime is 100512171533. The next prime is 100512171581. The reversal of 100512171573 is 375171215001.

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

It is a de Polignac number, because none of the positive numbers 2^k-100512171573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3045823381 = 100512171573 / (1 + 0 + 0 + 5 + 1 + 2 + 1 + 7 + 1 + 5 + 7 + 3).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100512171533) 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, 1522911658 + ... + 1522911723.

It is an arithmetic number, because the mean of its divisors is an integer number (18274940292).

Almost surely, 2^100512171573 is an apocalyptic number.

It is an amenable number.

100512171573 is a deficient number, since it is larger than the sum of its proper divisors (45687350763).

100512171573 is a wasteful number, since it uses less digits than its factorization.

100512171573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045823395.

The product of its (nonzero) digits is 7350, while the sum is 33.

Adding to 100512171573 its reverse (375171215001), we get a palindrome (475683386574).

The spelling of 100512171573 in words is "one hundred billion, five hundred twelve million, one hundred seventy-one thousand, five hundred seventy-three".