2011131333 has 6 divisors (see below), whose sum is σ = 2904967494. Its totient is φ = 1340754216.

The previous prime is 2011131307. The next prime is 2011131347. The reversal of 2011131333 is 3331311102.

It is a happy number.

2011131333 is a `hidden beast` number, since 201 + 1 + 131 + 333 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1308775329 + 702356004 = 36177^2 + 26502^2 .

It is not a de Polignac number, because 2011131333 - 2⁵ = 2011131301 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011131373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111729510 + ... + 111729527.

It is an arithmetic number, because the mean of its divisors is an integer number (484161249).

Almost surely, 2^2011131333 is an apocalyptic number.

It is an amenable number.

2011131333 is a deficient number, since it is larger than the sum of its proper divisors (893836161).

2011131333 is a wasteful number, since it uses less digits than its factorization.

2011131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223459043 (or 223459040 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2011131333 is about 44845.6389518535. The cubic root of 2011131333 is about 1262.2541602555.

Adding to 2011131333 its reverse (3331311102), we get a palindrome (5342442435).

The spelling of 2011131333 in words is "two billion, eleven million, one hundred thirty-one thousand, three hundred thirty-three".