2001100233 has 16 divisors (see below), whose sum is σ = 2915248896. Its totient is φ = 1210889040.

The previous prime is 2001100207. The next prime is 2001100237. The reversal of 2001100233 is 3320011002.

It is a happy number.

It is not a de Polignac number, because 2001100233 - 2¹⁶ = 2001034697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001100237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25935 + ... + 68372.

It is an arithmetic number, because the mean of its divisors is an integer number (182203056).

Almost surely, 2^2001100233 is an apocalyptic number.

It is an amenable number.

2001100233 is a deficient number, since it is larger than the sum of its proper divisors (914148663).

2001100233 is a wasteful number, since it uses less digits than its factorization.

2001100233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94964.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2001100233 is about 44733.6588376135. The cubic root of 2001100233 is about 1260.1520419953.

Adding to 2001100233 its reverse (3320011002), we get a palindrome (5321111235).

It can be divided in two parts, 20011002 and 33, that multiplied together give a palindrome (660363066).

The spelling of 2001100233 in words is "two billion, one million, one hundred thousand, two hundred thirty-three".