321120404333231 has 2 divisors, whose sum is σ = 321120404333232. Its totient is φ = 321120404333230.

The previous prime is 321120404333227. The next prime is 321120404333291. The reversal of 321120404333231 is 132333404021123.

It is a weak prime.

It is an emirp because it is prime and its reverse (132333404021123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321120404333231 - 2² = 321120404333227 is a prime.

It is a super-2 number, since 2×321120404333231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321120404333291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560202166615 + 160560202166616.

It is an arithmetic number, because the mean of its divisors is an integer number (160560202166616).

Almost surely, 2^{321120404333231} is an apocalyptic number.

321120404333231 is a deficient number, since it is larger than the sum of its proper divisors (1).

321120404333231 is an equidigital number, since it uses as much as digits as its factorization.

321120404333231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 321120404333231 its reverse (132333404021123), we get a palindrome (453453808354354).

The spelling of 321120404333231 in words is "three hundred twenty-one trillion, one hundred twenty billion, four hundred four million, three hundred thirty-three thousand, two hundred thirty-one".