100312009989 has 4 divisors (see below), whose sum is σ = 133749346656. Its totient is φ = 66874673324.

The previous prime is 100312009961. The next prime is 100312010023. The reversal of 100312009989 is 989900213001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100312009989 - 2⁹ = 100312009477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100312009989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100312009909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16718668329 + ... + 16718668334.

It is an arithmetic number, because the mean of its divisors is an integer number (33437336664).

Almost surely, 2^100312009989 is an apocalyptic number.

It is an amenable number.

100312009989 is a deficient number, since it is larger than the sum of its proper divisors (33437336667).

100312009989 is an equidigital number, since it uses as much as digits as its factorization.

100312009989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33437336666.

The product of its (nonzero) digits is 34992, while the sum is 42.

The spelling of 100312009989 in words is "one hundred billion, three hundred twelve million, nine thousand, nine hundred eighty-nine".