321032203143421 has 16 divisors (see below), whose sum is σ = 400251487927680. Its totient is φ = 250152747022080.

The previous prime is 321032203143419. The next prime is 321032203143473. The reversal of 321032203143421 is 124341302230123.

It is not a de Polignac number, because 321032203143421 - 2¹ = 321032203143419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321032203143481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9696856 + ... + 27131041.

It is an arithmetic number, because the mean of its divisors is an integer number (25015717995480).

Almost surely, 2^{321032203143421} is an apocalyptic number.

It is an amenable number.

321032203143421 is a deficient number, since it is larger than the sum of its proper divisors (79219284784259).

321032203143421 is a wasteful number, since it uses less digits than its factorization.

321032203143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36941124.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 321032203143421 its reverse (124341302230123), we get a palindrome (445373505373544).

The spelling of 321032203143421 in words is "three hundred twenty-one trillion, thirty-two billion, two hundred three million, one hundred forty-three thousand, four hundred twenty-one".