2000111985 has 12 divisors (see below), whose sum is σ = 3466860852. Its totient is φ = 1066726368.

The previous prime is 2000111983. The next prime is 2000112011. The reversal of 2000111985 is 5891110002.

2000111985 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 553755024 + 1446356961 = 23532^2 + 38031^2 .

It is not a de Polignac number, because 2000111985 - 2¹ = 2000111983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2000111983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22223422 + ... + 22223511.

It is an arithmetic number, because the mean of its divisors is an integer number (288905071).

Almost surely, 2^2000111985 is an apocalyptic number.

It is an amenable number.

2000111985 is a deficient number, since it is larger than the sum of its proper divisors (1466748867).

2000111985 is a wasteful number, since it uses less digits than its factorization.

2000111985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44446944 (or 44446941 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 2000111985 is about 44722.6115628325. The cubic root of 2000111985 is about 1259.9445648325.

Adding to 2000111985 its reverse (5891110002), we get a palindrome (7891221987).

The spelling of 2000111985 in words is "two billion, one hundred eleven thousand, nine hundred eighty-five".