213371550745673 has 2 divisors, whose sum is σ = 213371550745674. Its totient is φ = 213371550745672.

The previous prime is 213371550745663. The next prime is 213371550745679. The reversal of 213371550745673 is 376547055173312.

213371550745673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129307646307904 + 84063904437769 = 11371352^2 + 9168637^2 .

It is a cyclic number.

It is not a de Polignac number, because 213371550745673 - 2⁶ = 213371550745609 is a prime.

It is a super-2 number, since 2×213371550745673² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213371550745679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106685775372836 + 106685775372837.

It is an arithmetic number, because the mean of its divisors is an integer number (106685775372837).

Almost surely, 2^{213371550745673} is an apocalyptic number.

It is an amenable number.

213371550745673 is a deficient number, since it is larger than the sum of its proper divisors (1).

213371550745673 is an equidigital number, since it uses as much as digits as its factorization.

213371550745673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566000, while the sum is 59.

The spelling of 213371550745673 in words is "two hundred thirteen trillion, three hundred seventy-one billion, five hundred fifty million, seven hundred forty-five thousand, six hundred seventy-three".