100120875509 has 8 divisors (see below), whose sum is σ = 101116642752. Its totient is φ = 99130026240.

The previous prime is 100120875457. The next prime is 100120875521. The reversal of 100120875509 is 905578021001.

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

It is a cyclic number.

It is not a de Polignac number, because 100120875509 - 2¹⁶ = 100120809973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120875529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1188569 + ... + 1270014.

It is an arithmetic number, because the mean of its divisors is an integer number (12639580344).

Almost surely, 2^100120875509 is an apocalyptic number.

It is an amenable number.

100120875509 is a deficient number, since it is larger than the sum of its proper divisors (995767243).

100120875509 is a wasteful number, since it uses less digits than its factorization.

100120875509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458987.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 100120875509 in words is "one hundred billion, one hundred twenty million, eight hundred seventy-five thousand, five hundred nine".