2011131193 has 2 divisors, whose sum is σ = 2011131194. Its totient is φ = 2011131192.

The previous prime is 2011131137. The next prime is 2011131211. The reversal of 2011131193 is 3911311102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1200761104 + 810370089 = 34652^2 + 28467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011131193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011131593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005565596 + 1005565597.

It is an arithmetic number, because the mean of its divisors is an integer number (1005565597).

Almost surely, 2^2011131193 is an apocalyptic number.

It is an amenable number.

2011131193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011131193 is an equidigital number, since it uses as much as digits as its factorization.

2011131193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 2011131193 is about 44845.6373909436. The cubic root of 2011131193 is about 1262.2541309659.

Adding to 2011131193 its reverse (3911311102), we get a palindrome (5922442295).

The spelling of 2011131193 in words is "two billion, eleven million, one hundred thirty-one thousand, one hundred ninety-three".