321430313310040 has 128 divisors (see below), whose sum is σ = 830962251947520. Its totient is φ = 110756970649600.

The previous prime is 321430313310023. The next prime is 321430313310053. The reversal of 321430313310040 is 40013313034123.

It is a junction number, because it is equal to n+sod(n) for n = 321430313309990 and 321430313310008.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 147337201 + ... + 149502880.

It is an arithmetic number, because the mean of its divisors is an integer number (6491892593340).

Almost surely, 2^{321430313310040} is an apocalyptic number.

It is an amenable number.

321430313310040 is an abundant number, since it is smaller than the sum of its proper divisors (509531938637480).

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

321430313310040 is a wasteful number, since it uses less digits than its factorization.

321430313310040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296840233 (or 296840229 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 321430313310040 its reverse (40013313034123), we get a palindrome (361443626344163).

The spelling of 321430313310040 in words is "three hundred twenty-one trillion, four hundred thirty billion, three hundred thirteen million, three hundred ten thousand, forty".