2001600111 has 16 divisors (see below), whose sum is σ = 3229473024. Its totient is φ = 1076490624.

The previous prime is 2001600091. The next prime is 2001600113. The reversal of 2001600111 is 1110061002.

It is a happy number.

It is not a de Polignac number, because 2001600111 - 2⁵ = 2001600079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001600113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2803005 + ... + 2803718.

It is an arithmetic number, because the mean of its divisors is an integer number (201842064).

Almost surely, 2^2001600111 is an apocalyptic number.

2001600111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2001600111 is a deficient number, since it is larger than the sum of its proper divisors (1227872913).

2001600111 is a wasteful number, since it uses less digits than its factorization.

2001600111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606750.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2001600111 is about 44739.2457580590. The cubic root of 2001600111 is about 1260.2569625830.

Adding to 2001600111 its reverse (1110061002), we get a palindrome (3111661113).

The spelling of 2001600111 in words is "two billion, one million, six hundred thousand, one hundred eleven".