321322401432 has 96 divisors (see below), whose sum is σ = 902930090400. Its totient is φ = 103107013632.

The previous prime is 321322401419. The next prime is 321322401443. The reversal of 321322401432 is 234104223123.

321322401432 is a `hidden beast` number, since 3 + 2 + 1 + 3 + 224 + 0 + 1 + 432 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 321322401396 and 321322401405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475333 + ... + 931979.

It is an arithmetic number, because the mean of its divisors is an integer number (9405521775).

Almost surely, 2^321322401432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321322401432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451465045200).

321322401432 is an abundant number, since it is smaller than the sum of its proper divisors (581607688968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321322401432 is a wasteful number, since it uses less digits than its factorization.

321322401432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457025 (or 457018 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 321322401432 its reverse (234104223123), we get a palindrome (555426624555).

The spelling of 321322401432 in words is "three hundred twenty-one billion, three hundred twenty-two million, four hundred one thousand, four hundred thirty-two".