321434403143442 has 64 divisors (see below), whose sum is σ = 656563197726720. Its totient is φ = 104882687642304.

The previous prime is 321434403143339. The next prime is 321434403143537. The reversal of 321434403143442 is 244341304434123.

It is a junction number, because it is equal to n+sod(n) for n = 321434403143394 and 321434403143403.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449741023 + ... + 450455165.

It is an arithmetic number, because the mean of its divisors is an integer number (10258799964480).

Almost surely, 2^{321434403143442} is an apocalyptic number.

321434403143442 is an abundant number, since it is smaller than the sum of its proper divisors (335128794583278).

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

321434403143442 is a wasteful number, since it uses less digits than its factorization.

321434403143442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721247.

The product of its (nonzero) digits is 1327104, while the sum is 42.

Adding to 321434403143442 its reverse (244341304434123), we get a palindrome (565775707577565).

The spelling of 321434403143442 in words is "three hundred twenty-one trillion, four hundred thirty-four billion, four hundred three million, one hundred forty-three thousand, four hundred forty-two".