211098961973 has 2 divisors, whose sum is σ = 211098961974. Its totient is φ = 211098961972.

The previous prime is 211098961919. The next prime is 211098962027. The reversal of 211098961973 is 379169890112.

It is a balanced prime because it is at equal distance from previous prime (211098961919) and next prime (211098962027).

It can be written as a sum of positive squares in only one way, i.e., 210591045604 + 507916369 = 458902^2 + 22537^2 .

It is a cyclic number.

It is not a de Polignac number, because 211098961973 - 2¹⁰ = 211098960949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211098961903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105549480986 + 105549480987.

It is an arithmetic number, because the mean of its divisors is an integer number (105549480987).

Almost surely, 2^211098961973 is an apocalyptic number.

It is an amenable number.

211098961973 is a deficient number, since it is larger than the sum of its proper divisors (1).

211098961973 is an equidigital number, since it uses as much as digits as its factorization.

211098961973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 211098961973 in words is "two hundred eleven billion, ninety-eight million, nine hundred sixty-one thousand, nine hundred seventy-three".