210440340210011 has 2 divisors, whose sum is σ = 210440340210012. Its totient is φ = 210440340210010.

The previous prime is 210440340209999. The next prime is 210440340210017. The reversal of 210440340210011 is 110012043044012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210440340210011 - 2¹⁴ = 210440340193627 is a prime.

It is not a weakly prime, because it can be changed into another prime (210440340210017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105220170105005 + 105220170105006.

It is an arithmetic number, because the mean of its divisors is an integer number (105220170105006).

Almost surely, 2^{210440340210011} is an apocalyptic number.

210440340210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

210440340210011 is an equidigital number, since it uses as much as digits as its factorization.

210440340210011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 210440340210011 its reverse (110012043044012), we get a palindrome (320452383254023).

The spelling of 210440340210011 in words is "two hundred ten trillion, four hundred forty billion, three hundred forty million, two hundred ten thousand, eleven".