205130603306 has 16 divisors (see below), whose sum is σ = 309299088384. Its totient is φ = 102031046544.

The previous prime is 205130603299. The next prime is 205130603311. The reversal of 205130603306 is 603306031502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3335471 + ... + 3396413.

It is an arithmetic number, because the mean of its divisors is an integer number (19331193024).

Almost surely, 2^205130603306 is an apocalyptic number.

205130603306 is a deficient number, since it is larger than the sum of its proper divisors (104168485078).

205130603306 is a wasteful number, since it uses less digits than its factorization.

205130603306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69685.

The product of its (nonzero) digits is 9720, while the sum is 29.

Adding to 205130603306 its reverse (603306031502), we get a palindrome (808436634808).

The spelling of 205130603306 in words is "two hundred five billion, one hundred thirty million, six hundred three thousand, three hundred six".