205320352442 has 32 divisors (see below), whose sum is σ = 314829275904. Its totient is φ = 100390680000.

The previous prime is 205320352427. The next prime is 205320352453. The reversal of 205320352442 is 244253023502.

It is a junction number, because it is equal to n+sod(n) for n = 205320352399 and 205320352408.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 45452768 + ... + 45457284.

It is an arithmetic number, because the mean of its divisors is an integer number (9838414872).

Almost surely, 2^205320352442 is an apocalyptic number.

205320352442 is a deficient number, since it is larger than the sum of its proper divisors (109508923462).

205320352442 is a wasteful number, since it uses less digits than its factorization.

205320352442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 205320352442 its reverse (244253023502), we get a palindrome (449573375944).

The spelling of 205320352442 in words is "two hundred five billion, three hundred twenty million, three hundred fifty-two thousand, four hundred forty-two".