211550446297313 has 2 divisors, whose sum is σ = 211550446297314. Its totient is φ = 211550446297312.

The previous prime is 211550446297273. The next prime is 211550446297343. The reversal of 211550446297313 is 313792644055112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138100267082449 + 73450179214864 = 11751607^2 + 8570308^2 .

It is a cyclic number.

It is not a de Polignac number, because 211550446297313 - 2¹⁶ = 211550446231777 is a prime.

It is not a weakly prime, because it can be changed into another prime (211550446297343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105775223148656 + 105775223148657.

It is an arithmetic number, because the mean of its divisors is an integer number (105775223148657).

Almost surely, 2^{211550446297313} is an apocalyptic number.

It is an amenable number.

211550446297313 is a deficient number, since it is larger than the sum of its proper divisors (1).

211550446297313 is an equidigital number, since it uses as much as digits as its factorization.

211550446297313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 211550446297313 in words is "two hundred eleven trillion, five hundred fifty billion, four hundred forty-six million, two hundred ninety-seven thousand, three hundred thirteen".