211200121430513 has 2 divisors, whose sum is σ = 211200121430514. Its totient is φ = 211200121430512.

The previous prime is 211200121430471. The next prime is 211200121430567. The reversal of 211200121430513 is 315034121002112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136511930204224 + 74688191226289 = 11683832^2 + 8642233^2 .

It is a cyclic number.

It is not a de Polignac number, because 211200121430513 - 2⁶ = 211200121430449 is a prime.

It is not a weakly prime, because it can be changed into another prime (211200121420513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600060715256 + 105600060715257.

It is an arithmetic number, because the mean of its divisors is an integer number (105600060715257).

Almost surely, 2^{211200121430513} is an apocalyptic number.

It is an amenable number.

211200121430513 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200121430513 is an equidigital number, since it uses as much as digits as its factorization.

211200121430513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 211200121430513 its reverse (315034121002112), we get a palindrome (526234242432625).

The spelling of 211200121430513 in words is "two hundred eleven trillion, two hundred billion, one hundred twenty-one million, four hundred thirty thousand, five hundred thirteen".