321213421042340 has 96 divisors (see below), whose sum is σ = 679794461541888. Its totient is φ = 127490366016000.

The previous prime is 321213421042313. The next prime is 321213421042373. The reversal of 321213421042340 is 43240124312123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321213421042297 and 321213421042306.

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, 3334427975 + ... + 3334524305.

It is an arithmetic number, because the mean of its divisors is an integer number (7081192307728).

Almost surely, 2^{321213421042340} is an apocalyptic number.

It is an amenable number.

321213421042340 is an abundant number, since it is smaller than the sum of its proper divisors (358581040499548).

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

321213421042340 is a wasteful number, since it uses less digits than its factorization.

321213421042340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99109 (or 99107 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 321213421042340 its reverse (43240124312123), we get a palindrome (364453545354463).

The spelling of 321213421042340 in words is "three hundred twenty-one trillion, two hundred thirteen billion, four hundred twenty-one million, forty-two thousand, three hundred forty".