321223440121342 has 16 divisors (see below), whose sum is σ = 556558259890032. Its totient is φ = 137421792565120.

The previous prime is 321223440121333. The next prime is 321223440121361. The reversal of 321223440121342 is 243121044322123.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 321223440121298 and 321223440121307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429443101393 + ... + 429443102140.

It is an arithmetic number, because the mean of its divisors is an integer number (34784891243127).

Almost surely, 2^{321223440121342} is an apocalyptic number.

321223440121342 is a deficient number, since it is larger than the sum of its proper divisors (235334819768690).

321223440121342 is a wasteful number, since it uses less digits than its factorization.

321223440121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858886203563.

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

Adding to 321223440121342 its reverse (243121044322123), we get a palindrome (564344484443465).

The spelling of 321223440121342 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, four hundred forty million, one hundred twenty-one thousand, three hundred forty-two".