321121012440424 has 64 divisors (see below), whose sum is σ = 696888305971200. Its totient is φ = 135871212763584.

The previous prime is 321121012440407. The next prime is 321121012440439. The reversal of 321121012440424 is 424044210121123.

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 15 ways as a sum of consecutive naturals, for example, 17147184 + ... + 30598495.

It is an arithmetic number, because the mean of its divisors is an integer number (10888879780800).

Almost surely, 2^{321121012440424} is an apocalyptic number.

It is an amenable number.

321121012440424 is an abundant number, since it is smaller than the sum of its proper divisors (375767293530776).

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

321121012440424 is a wasteful number, since it uses less digits than its factorization.

321121012440424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47747222 (or 47747218 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 321121012440424 its reverse (424044210121123), we get a palindrome (745165222561547).

The spelling of 321121012440424 in words is "three hundred twenty-one trillion, one hundred twenty-one billion, twelve million, four hundred forty thousand, four hundred twenty-four".