211204230137 has 2 divisors, whose sum is σ = 211204230138. Its totient is φ = 211204230136.

The previous prime is 211204230089. The next prime is 211204230187. The reversal of 211204230137 is 731032402112.

211204230137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211139331001 + 64899136 = 459499^2 + 8056^2 .

It is a cyclic number.

It is not a de Polignac number, because 211204230137 - 2¹⁰ = 211204229113 is a prime.

It is not a weakly prime, because it can be changed into another prime (211204230187) 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, 105602115068 + 105602115069.

It is an arithmetic number, because the mean of its divisors is an integer number (105602115069).

Almost surely, 2^211204230137 is an apocalyptic number.

It is an amenable number.

211204230137 is a deficient number, since it is larger than the sum of its proper divisors (1).

211204230137 is an equidigital number, since it uses as much as digits as its factorization.

211204230137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 211204230137 its reverse (731032402112), we get a palindrome (942236632249).

The spelling of 211204230137 in words is "two hundred eleven billion, two hundred four million, two hundred thirty thousand, one hundred thirty-seven".