211264331401373 has 2 divisors, whose sum is σ = 211264331401374. Its totient is φ = 211264331401372.

The previous prime is 211264331401339. The next prime is 211264331401381. The reversal of 211264331401373 is 373104133462112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211243056845209 + 21274556164 = 14534203^2 + 145858^2 .

It is a cyclic number.

It is not a de Polignac number, because 211264331401373 - 2³² = 211260036434077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211264331401373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211264330401373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105632165700686 + 105632165700687.

It is an arithmetic number, because the mean of its divisors is an integer number (105632165700687).

Almost surely, 2^{211264331401373} is an apocalyptic number.

It is an amenable number.

211264331401373 is a deficient number, since it is larger than the sum of its proper divisors (1).

211264331401373 is an equidigital number, since it uses as much as digits as its factorization.

211264331401373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 41.

Adding to 211264331401373 its reverse (373104133462112), we get a palindrome (584368464863485).

The spelling of 211264331401373 in words is "two hundred eleven trillion, two hundred sixty-four billion, three hundred thirty-one million, four hundred one thousand, three hundred seventy-three".