110101001985 has 24 divisors (see below), whose sum is σ = 205521871464. Its totient is φ = 54203569920.

The previous prime is 110101001971. The next prime is 110101002023. The reversal of 110101001985 is 589100101011.

It can be written as a sum of positive squares in 4 ways, for example, as 19904695056 + 90196306929 = 141084^2 + 300327^2 .

It is not a de Polignac number, because 110101001985 - 2⁵ = 110101001953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94102836 + ... + 94104005.

It is an arithmetic number, because the mean of its divisors is an integer number (8563411311).

Almost surely, 2^110101001985 is an apocalyptic number.

110101001985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

110101001985 is a deficient number, since it is larger than the sum of its proper divisors (95420869479).

110101001985 is a wasteful number, since it uses less digits than its factorization.

110101001985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188206865 (or 188206862 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 27.

Adding to 110101001985 its reverse (589100101011), we get a palindrome (699201102996).

The spelling of 110101001985 in words is "one hundred ten billion, one hundred one million, one thousand, nine hundred eighty-five".