321442143220133 has 48 divisors (see below), whose sum is σ = 359681252426496. Its totient is φ = 285555365975040.

The previous prime is 321442143220117. The next prime is 321442143220207. The reversal of 321442143220133 is 331022341244123.

It is a happy number.

It is not a de Polignac number, because 321442143220133 - 2⁴ = 321442143220117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321442143220093 and 321442143220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321442143220333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4194636728 + ... + 4194713358.

It is an arithmetic number, because the mean of its divisors is an integer number (7493359425552).

Almost surely, 2^{321442143220133} is an apocalyptic number.

It is an amenable number.

321442143220133 is a deficient number, since it is larger than the sum of its proper divisors (38239109206363).

321442143220133 is a wasteful number, since it uses less digits than its factorization.

321442143220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77942 (or 77913 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 321442143220133 its reverse (331022341244123), we get a palindrome (652464484464256).

The spelling of 321442143220133 in words is "three hundred twenty-one trillion, four hundred forty-two billion, one hundred forty-three million, two hundred twenty thousand, one hundred thirty-three".