211244414343013 has 2 divisors, whose sum is σ = 211244414343014. Its totient is φ = 211244414343012.

The previous prime is 211244414343007. The next prime is 211244414343023. The reversal of 211244414343013 is 310343414442112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105995219978404 + 105249194364609 = 10295398^2 + 10259103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211244414343013 is a prime.

It is a super-2 number, since 2×211244414343013² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211244414343023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105622207171506 + 105622207171507.

It is an arithmetic number, because the mean of its divisors is an integer number (105622207171507).

Almost surely, 2^{211244414343013} is an apocalyptic number.

It is an amenable number.

211244414343013 is a deficient number, since it is larger than the sum of its proper divisors (1).

211244414343013 is an equidigital number, since it uses as much as digits as its factorization.

211244414343013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 37.

Adding to 211244414343013 its reverse (310343414442112), we get a palindrome (521587828785125).

Subtracting 211244414343013 from its reverse (310343414442112), we obtain a palindrome (99099000099099).

The spelling of 211244414343013 in words is "two hundred eleven trillion, two hundred forty-four billion, four hundred fourteen million, three hundred forty-three thousand, thirteen".