321103534487044 has 81 divisors (see below), whose sum is σ = 575478332009301. Its totient is φ = 156771480716640.

The previous prime is 321103534487003. The next prime is 321103534487081. The reversal of 321103534487044 is 440784435301123.

The square root of 321103534487044 is 17919362.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3538303957444 + 317565230529600 = 1881038^2 + 17820360^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 382721733177 + ... + 382721734015.

Almost surely, 2^{321103534487044} is an apocalyptic number.

321103534487044 is the 17919362-nd square number.

It is an amenable number.

321103534487044 is a deficient number, since it is larger than the sum of its proper divisors (254374797522257).

321103534487044 is an frugal number, since it uses more digits than its factorization.

321103534487044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 49.

Adding to 321103534487044 its reverse (440784435301123), we get a palindrome (761887969788167).

The spelling of 321103534487044 in words is "three hundred twenty-one trillion, one hundred three billion, five hundred thirty-four million, four hundred eighty-seven thousand, forty-four".