205013996273 has 2 divisors, whose sum is σ = 205013996274. Its totient is φ = 205013996272.

The previous prime is 205013996249. The next prime is 205013996311. The reversal of 205013996273 is 372699310502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149472704689 + 55541291584 = 386617^2 + 235672^2 .

It is a cyclic number.

It is not a de Polignac number, because 205013996273 - 2⁸ = 205013996017 is a prime.

It is not a weakly prime, because it can be changed into another prime (205013996203) 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, 102506998136 + 102506998137.

It is an arithmetic number, because the mean of its divisors is an integer number (102506998137).

Almost surely, 2^205013996273 is an apocalyptic number.

It is an amenable number.

205013996273 is a deficient number, since it is larger than the sum of its proper divisors (1).

205013996273 is an equidigital number, since it uses as much as digits as its factorization.

205013996273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 47.

It can be divided in two parts, 2050139 and 96273, that added together give a palindrome (2146412).

The spelling of 205013996273 in words is "two hundred five billion, thirteen million, nine hundred ninety-six thousand, two hundred seventy-three".