2011020233 has 4 divisors (see below), whose sum is σ = 2017486848. Its totient is φ = 2004553620.

The previous prime is 2011020227. The next prime is 2011020257. The reversal of 2011020233 is 3320201102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011020233 - 2²⁸ = 1742584777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011020833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3232841 + ... + 3233462.

It is an arithmetic number, because the mean of its divisors is an integer number (504371712).

Almost surely, 2^2011020233 is an apocalyptic number.

It is an amenable number.

2011020233 is a deficient number, since it is larger than the sum of its proper divisors (6466615).

2011020233 is an equidigital number, since it uses as much as digits as its factorization.

2011020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6466614.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011020233 is about 44844.4002412787. The cubic root of 2011020233 is about 1262.2309164528.

Adding to 2011020233 its reverse (3320201102), we get a palindrome (5331221335).

The spelling of 2011020233 in words is "two billion, eleven million, twenty thousand, two hundred thirty-three".