321404442232141 has 16 divisors (see below), whose sum is σ = 329422130928000. Its totient is φ = 313462068499008.

The previous prime is 321404442232123. The next prime is 321404442232169. The reversal of 321404442232141 is 141232244404123.

It is a cyclic number.

It is not a de Polignac number, because 321404442232141 - 2³³ = 321395852297549 is a prime.

It is a super-2 number, since 2×321404442232141² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321404442232141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321404442272141) 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 in 15 ways as a sum of consecutive naturals, for example, 2978551 + ... + 25528036.

It is an arithmetic number, because the mean of its divisors is an integer number (20588883183000).

Almost surely, 2^{321404442232141} is an apocalyptic number.

It is an amenable number.

321404442232141 is a deficient number, since it is larger than the sum of its proper divisors (8017688695859).

321404442232141 is a wasteful number, since it uses less digits than its factorization.

321404442232141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28507908.

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 321404442232141 its reverse (141232244404123), we get a palindrome (462636686636264).

The spelling of 321404442232141 in words is "three hundred twenty-one trillion, four hundred four billion, four hundred forty-two million, two hundred thirty-two thousand, one hundred forty-one".