110110020989 has 4 divisors (see below), whose sum is σ = 110112375324. Its totient is φ = 110107666656.

The previous prime is 110110020973. The next prime is 110110021027. The reversal of 110110020989 is 989020011011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19899898489 + 90210122500 = 141067^2 + 300350^2 .

It is a cyclic number.

It is not a de Polignac number, because 110110020989 - 2⁴ = 110110020973 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 (110110020949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105562 + ... + 1201035.

It is an arithmetic number, because the mean of its divisors is an integer number (27528093831).

Almost surely, 2^110110020989 is an apocalyptic number.

It is an amenable number.

110110020989 is a deficient number, since it is larger than the sum of its proper divisors (2354335).

110110020989 is an equidigital number, since it uses as much as digits as its factorization.

110110020989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354334.

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

The spelling of 110110020989 in words is "one hundred ten billion, one hundred ten million, twenty thousand, nine hundred eighty-nine".