2011131211 has 2 divisors, whose sum is σ = 2011131212. Its totient is φ = 2011131210.

The previous prime is 2011131193. The next prime is 2011131259. The reversal of 2011131211 is 1121311102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011131211 - 2¹⁵ = 2011098443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011131191 and 2011131200.

It is not a weakly prime, because it can be changed into another prime (2011131011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005565605 + 1005565606.

It is an arithmetic number, because the mean of its divisors is an integer number (1005565606).

Almost surely, 2^2011131211 is an apocalyptic number.

2011131211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011131211 is an equidigital number, since it uses as much as digits as its factorization.

2011131211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2011131211 is about 44845.6375916320. The cubic root of 2011131211 is about 1262.2541347317.

Adding to 2011131211 its reverse (1121311102), we get a palindrome (3132442313).

The spelling of 2011131211 in words is "two billion, eleven million, one hundred thirty-one thousand, two hundred eleven".