205675311371 has 2 divisors, whose sum is σ = 205675311372. Its totient is φ = 205675311370.

The previous prime is 205675311337. The next prime is 205675311383. The reversal of 205675311371 is 173113576502.

205675311371 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 is a cyclic number.

It is not a de Polignac number, because 205675311371 - 2²⁶ = 205608202507 is a prime.

It is not a weakly prime, because it can be changed into another prime (205675311571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102837655685 + 102837655686.

It is an arithmetic number, because the mean of its divisors is an integer number (102837655686).

Almost surely, 2^205675311371 is an apocalyptic number.

205675311371 is a deficient number, since it is larger than the sum of its proper divisors (1).

205675311371 is an equidigital number, since it uses as much as digits as its factorization.

205675311371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 132300, while the sum is 41.

Adding to 205675311371 its reverse (173113576502), we get a palindrome (378788887873).

The spelling of 205675311371 in words is "two hundred five billion, six hundred seventy-five million, three hundred eleven thousand, three hundred seventy-one".