110101101009989 has 2 divisors, whose sum is σ = 110101101009990. Its totient is φ = 110101101009988.

The previous prime is 110101101009973. The next prime is 110101101010013. The reversal of 110101101009989 is 989900101101011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94851685507489 + 15249415502500 = 9739183^2 + 3905050^2 .

It is a cyclic number.

It is not a de Polignac number, because 110101101009989 - 2⁴ = 110101101009973 is a prime.

It is a super-2 number, since 2×110101101009989² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110101101009929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050550504994 + 55050550504995.

It is an arithmetic number, because the mean of its divisors is an integer number (55050550504995).

Almost surely, 2^{110101101009989} is an apocalyptic number.

It is an amenable number.

110101101009989 is a deficient number, since it is larger than the sum of its proper divisors (1).

110101101009989 is an equidigital number, since it uses as much as digits as its factorization.

110101101009989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 41.

The spelling of 110101101009989 in words is "one hundred ten trillion, one hundred one billion, one hundred one million, nine thousand, nine hundred eighty-nine".