321203124020401 has 16 divisors (see below), whose sum is σ = 373151400099328. Its totient is φ = 270771447585600.

The previous prime is 321203124020377. The next prime is 321203124020413. The reversal of 321203124020401 is 104020421302123.

It is a cyclic number.

It is not a de Polignac number, because 321203124020401 - 2⁵ = 321203124020369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321203124050401) 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, 41011050 + ... + 48211123.

It is an arithmetic number, because the mean of its divisors is an integer number (23321962506208).

Almost surely, 2^{321203124020401} is an apocalyptic number.

It is an amenable number.

321203124020401 is a deficient number, since it is larger than the sum of its proper divisors (51948276078927).

321203124020401 is an equidigital number, since it uses as much as digits as its factorization.

321203124020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89230672.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 321203124020401 its reverse (104020421302123), we get a palindrome (425223545322524).

The spelling of 321203124020401 in words is "three hundred twenty-one trillion, two hundred three billion, one hundred twenty-four million, twenty thousand, four hundred one".