320641020202 has 16 divisors (see below), whose sum is σ = 491213963520. Its totient is φ = 156903299248.

The previous prime is 320641020199. The next prime is 320641020209. The reversal of 320641020202 is 202020146023.

It is not an unprimeable number, because it can be changed into a prime (320641020209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3192324 + ... + 3291232.

It is an arithmetic number, because the mean of its divisors is an integer number (30700872720).

Almost surely, 2^320641020202 is an apocalyptic number.

320641020202 is a deficient number, since it is larger than the sum of its proper divisors (170572943318).

320641020202 is a wasteful number, since it uses less digits than its factorization.

320641020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133445.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 320641020202 its reverse (202020146023), we get a palindrome (522661166225).

The spelling of 320641020202 in words is "three hundred twenty billion, six hundred forty-one million, twenty thousand, two hundred two".