110001020989 has 2 divisors, whose sum is σ = 110001020990. Its totient is φ = 110001020988.

The previous prime is 110001020977. The next prime is 110001020993. The reversal of 110001020989 is 989020100011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99297463225 + 10703557764 = 315115^2 + 103458^2 .

It is a cyclic number.

It is not a de Polignac number, because 110001020989 - 2⁵ = 110001020957 is a prime.

It is a super-3 number, since 3×110001020989³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110001020989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110001020959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000510494 + 55000510495.

It is an arithmetic number, because the mean of its divisors is an integer number (55000510495).

Almost surely, 2^110001020989 is an apocalyptic number.

It is an amenable number.

110001020989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110001020989 is an equidigital number, since it uses as much as digits as its factorization.

110001020989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 110001020989 in words is "one hundred ten billion, one million, twenty thousand, nine hundred eighty-nine".