211130209949 has 2 divisors, whose sum is σ = 211130209950. Its totient is φ = 211130209948.

The previous prime is 211130209933. The next prime is 211130209957. The reversal of 211130209949 is 949902031112.

211130209949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121305924100 + 89824285849 = 348290^2 + 299707^2 .

It is a cyclic number.

It is not a de Polignac number, because 211130209949 - 2⁴ = 211130209933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211130209919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105565104974 + 105565104975.

It is an arithmetic number, because the mean of its divisors is an integer number (105565104975).

Almost surely, 2^211130209949 is an apocalyptic number.

It is an amenable number.

211130209949 is a deficient number, since it is larger than the sum of its proper divisors (1).

211130209949 is an equidigital number, since it uses as much as digits as its factorization.

211130209949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 211130209949 in words is "two hundred eleven billion, one hundred thirty million, two hundred nine thousand, nine hundred forty-nine".