321230424140 has 192 divisors, whose sum is σ = 735373900800. Its totient is φ = 117549121536.

The previous prime is 321230424139. The next prime is 321230424143. The reversal of 321230424140 is 41424032123.

It is not an unprimeable number, because it can be changed into a prime (321230424143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 477310844 + ... + 477311516.

It is an arithmetic number, because the mean of its divisors is an integer number (3830072400).

Almost surely, 2^321230424140 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 321230424140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367686950400).

321230424140 is an abundant number, since it is smaller than the sum of its proper divisors (414143476660).

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

321230424140 is a wasteful number, since it uses less digits than its factorization.

321230424140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 321230424140 its reverse (41424032123), we get a palindrome (362654456263).

The spelling of 321230424140 in words is "three hundred twenty-one billion, two hundred thirty million, four hundred twenty-four thousand, one hundred forty".