205310340304 has 20 divisors (see below), whose sum is σ = 398240331300. Its totient is φ = 102538641920.

The previous prime is 205310340283. The next prime is 205310340341. The reversal of 205310340304 is 403043013502.

It can be written as a sum of positive squares in 2 ways, for example, as 110125749904 + 95184590400 = 331852^2 + 308520^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7268479 + ... + 7296670.

It is an arithmetic number, because the mean of its divisors is an integer number (19912016565).

Almost surely, 2^205310340304 is an apocalyptic number.

It is an amenable number.

205310340304 is a deficient number, since it is larger than the sum of its proper divisors (192929990996).

205310340304 is a wasteful number, since it uses less digits than its factorization.

205310340304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14566038 (or 14566032 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 205310340304 its reverse (403043013502), we get a palindrome (608353353806).

The spelling of 205310340304 in words is "two hundred five billion, three hundred ten million, three hundred forty thousand, three hundred four".