211550013131063 has 2 divisors, whose sum is σ = 211550013131064. Its totient is φ = 211550013131062.

The previous prime is 211550013131047. The next prime is 211550013131129. The reversal of 211550013131063 is 360131310055112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211550013131063 - 2⁴ = 211550013131047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211550013134063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105775006565531 + 105775006565532.

It is an arithmetic number, because the mean of its divisors is an integer number (105775006565532).

Almost surely, 2^{211550013131063} is an apocalyptic number.

211550013131063 is a deficient number, since it is larger than the sum of its proper divisors (1).

211550013131063 is an equidigital number, since it uses as much as digits as its factorization.

211550013131063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 32.

Adding to 211550013131063 its reverse (360131310055112), we get a palindrome (571681323186175).

The spelling of 211550013131063 in words is "two hundred eleven trillion, five hundred fifty billion, thirteen million, one hundred thirty-one thousand, sixty-three".