2111531133 has 16 divisors (see below), whose sum is σ = 2908805760. Its totient is φ = 1361428416.

The previous prime is 2111531131. The next prime is 2111531143. The reversal of 2111531133 is 3311351112.

It is not a de Polignac number, because 2111531133 - 2¹ = 2111531131 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 (2111531131) 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, 38418 + ... + 75491.

It is an arithmetic number, because the mean of its divisors is an integer number (181800360).

Almost surely, 2^2111531133 is an apocalyptic number.

It is an amenable number.

2111531133 is a deficient number, since it is larger than the sum of its proper divisors (797274627).

2111531133 is a wasteful number, since it uses less digits than its factorization.

2111531133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114116.

The product of its digits is 270, while the sum is 21.

The square root of 2111531133 is about 45951.3996848845. The cubic root of 2111531133 is about 1282.9187813479.

Adding to 2111531133 its reverse (3311351112), we get a palindrome (5422882245).

The spelling of 2111531133 in words is "two billion, one hundred eleven million, five hundred thirty-one thousand, one hundred thirty-three".