110101009989 has 4 divisors (see below), whose sum is σ = 146801346656. Its totient is φ = 73400673324.

The previous prime is 110101009987. The next prime is 110101009999. The reversal of 110101009989 is 989900101011.

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 not a de Polignac number, because 110101009989 - 2¹ = 110101009987 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 (110101009987) 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, 18350168329 + ... + 18350168334.

It is an arithmetic number, because the mean of its divisors is an integer number (36700336664).

Almost surely, 2^110101009989 is an apocalyptic number.

It is an amenable number.

110101009989 is a deficient number, since it is larger than the sum of its proper divisors (36700336667).

110101009989 is an equidigital number, since it uses as much as digits as its factorization.

110101009989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36700336666.

The product of its (nonzero) digits is 5832, while the sum is 39.

The spelling of 110101009989 in words is "one hundred ten billion, one hundred one million, nine thousand, nine hundred eighty-nine".