2011333133 has 4 divisors (see below), whose sum is σ = 2011481568. Its totient is φ = 2011184700.

The previous prime is 2011333117. The next prime is 2011333147. The reversal of 2011333133 is 3313331102.

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 2011333133 - 2⁴ = 2011333117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011333033) 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, 51593 + ... + 81758.

It is an arithmetic number, because the mean of its divisors is an integer number (502870392).

Almost surely, 2^2011333133 is an apocalyptic number.

It is an amenable number.

2011333133 is a deficient number, since it is larger than the sum of its proper divisors (148435).

2011333133 is a wasteful number, since it uses less digits than its factorization.

2011333133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148434.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 2011333133 is about 44847.8888354848. Note that the first 4 decimals coincide. The cubic root of 2011333133 is about 1262.2963776824.

Adding to 2011333133 its reverse (3313331102), we get a palindrome (5324664235).

The spelling of 2011333133 in words is "two billion, eleven million, three hundred thirty-three thousand, one hundred thirty-three".