205355103103 has 2 divisors, whose sum is σ = 205355103104. Its totient is φ = 205355103102.

The previous prime is 205355103011. The next prime is 205355103119. The reversal of 205355103103 is 301301553502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205355103103 - 2²¹ = 205353005951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205355103193) 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, 102677551551 + 102677551552.

It is an arithmetic number, because the mean of its divisors is an integer number (102677551552).

Almost surely, 2^205355103103 is an apocalyptic number.

205355103103 is a deficient number, since it is larger than the sum of its proper divisors (1).

205355103103 is an equidigital number, since it uses as much as digits as its factorization.

205355103103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 205355103103 its reverse (301301553502), we get a palindrome (506656656605).

The spelling of 205355103103 in words is "two hundred five billion, three hundred fifty-five million, one hundred three thousand, one hundred three".