100111200989 has 8 divisors (see below), whose sum is σ = 101166958200. Its totient is φ = 99055927296.

The previous prime is 100111200983. The next prime is 100111201019. The reversal of 100111200989 is 989002111001.

It can be written as a sum of positive squares in 4 ways, for example, as 16471668964 + 83639532025 = 128342^2 + 289205^2 .

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 100111200989 - 2³² = 95816233693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111200983) 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, 303197 + ... + 540509.

It is an arithmetic number, because the mean of its divisors is an integer number (12645869775).

Almost surely, 2^100111200989 is an apocalyptic number.

It is an amenable number.

100111200989 is a deficient number, since it is larger than the sum of its proper divisors (1055757211).

100111200989 is an equidigital number, since it uses as much as digits as its factorization.

100111200989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241759.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 100111200989 in words is "one hundred billion, one hundred eleven million, two hundred thousand, nine hundred eighty-nine".