110000111989 has 2 divisors, whose sum is σ = 110000111990. Its totient is φ = 110000111988.

The previous prime is 110000111929. The next prime is 110000112011. The reversal of 110000111989 is 989111000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94966899889 + 15033212100 = 308167^2 + 122610^2 .

It is a cyclic number.

It is not a de Polignac number, because 110000111989 - 2⁷ = 110000111861 is a prime.

It is a super-3 number, since 3×110000111989³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 110000111989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110000111929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55000055994 + 55000055995.

It is an arithmetic number, because the mean of its divisors is an integer number (55000055995).

Almost surely, 2^110000111989 is an apocalyptic number.

It is an amenable number.

110000111989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110000111989 is an equidigital number, since it uses as much as digits as its factorization.

110000111989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 31.

The spelling of 110000111989 in words is "one hundred ten billion, one hundred eleven thousand, nine hundred eighty-nine".