321204131210001 has 16 divisors (see below), whose sum is σ = 461509769770560. Its totient is φ = 197538260159040.

The previous prime is 321204131209993. The next prime is 321204131210029. The reversal of 321204131210001 is 100012131402123.

It is not a de Polignac number, because 321204131210001 - 2³ = 321204131209993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321204131210001.

It is not an unprimeable number, because it can be changed into a prime (321204131210071) 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, 2621200146 + ... + 2621322683.

It is an arithmetic number, because the mean of its divisors is an integer number (28844360610660).

Almost surely, 2^{321204131210001} is an apocalyptic number.

It is an amenable number.

321204131210001 is a deficient number, since it is larger than the sum of its proper divisors (140305638560559).

321204131210001 is a wasteful number, since it uses less digits than its factorization.

321204131210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242524416.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 321204131210001 its reverse (100012131402123), we get a palindrome (421216262612124).

The spelling of 321204131210001 in words is "three hundred twenty-one trillion, two hundred four billion, one hundred thirty-one million, two hundred ten thousand, one".