321424310341420 has 144 divisors (see below), whose sum is σ = 799331546924064. Its totient is φ = 107846452454400.

The previous prime is 321424310341411. The next prime is 321424310341429. The reversal of 321424310341420 is 24143013424123.

It is an interprime number because it is at equal distance from previous prime (321424310341411) and next prime (321424310341429).

It is not an unprimeable number, because it can be changed into a prime (321424310341429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74701087 + ... + 78886633.

It is an arithmetic number, because the mean of its divisors is an integer number (5550913520306).

Almost surely, 2^{321424310341420} 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 321424310341420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399665773462032).

321424310341420 is an abundant number, since it is smaller than the sum of its proper divisors (477907236582644).

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

321424310341420 is a wasteful number, since it uses less digits than its factorization.

321424310341420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188032 (or 4188019 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 321424310341420 its reverse (24143013424123), we get a palindrome (345567323765543).

The spelling of 321424310341420 in words is "three hundred twenty-one trillion, four hundred twenty-four billion, three hundred ten million, three hundred forty-one thousand, four hundred twenty".