321310213020422 has 4 divisors (see below), whose sum is σ = 481965319530636. Its totient is φ = 160655106510210.

The previous prime is 321310213020413. The next prime is 321310213020443. The reversal of 321310213020422 is 224020312013123.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 321310213020391 and 321310213020400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80327553255104 + ... + 80327553255107.

It is an arithmetic number, because the mean of its divisors is an integer number (120491329882659).

Almost surely, 2^{321310213020422} is an apocalyptic number.

321310213020422 is a deficient number, since it is larger than the sum of its proper divisors (160655106510214).

321310213020422 is a wasteful number, since it uses less digits than its factorization.

321310213020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160655106510213.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 321310213020422 its reverse (224020312013123), we get a palindrome (545330525033545).

The spelling of 321310213020422 in words is "three hundred twenty-one trillion, three hundred ten billion, two hundred thirteen million, twenty thousand, four hundred twenty-two".