211205916043753 has 2 divisors, whose sum is σ = 211205916043754. Its totient is φ = 211205916043752.

The previous prime is 211205916043711. The next prime is 211205916043757. The reversal of 211205916043753 is 357340619502112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184408034814864 + 26797881228889 = 13579692^2 + 5176667^2 .

It is a cyclic number.

It is not a de Polignac number, because 211205916043753 - 2⁴¹ = 209006892788201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211205916043697 and 211205916043706.

It is not a weakly prime, because it can be changed into another prime (211205916043757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105602958021876 + 105602958021877.

It is an arithmetic number, because the mean of its divisors is an integer number (105602958021877).

Almost surely, 2^{211205916043753} is an apocalyptic number.

It is an amenable number.

211205916043753 is a deficient number, since it is larger than the sum of its proper divisors (1).

211205916043753 is an equidigital number, since it uses as much as digits as its factorization.

211205916043753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 211205916043753 in words is "two hundred eleven trillion, two hundred five billion, nine hundred sixteen million, forty-three thousand, seven hundred fifty-three".