321211231340342 has 32 divisors (see below), whose sum is σ = 568429312573440. Its totient is φ = 133216875908640.

The previous prime is 321211231340333. The next prime is 321211231340353. The reversal of 321211231340342 is 243043132112123.

It is a junction number, because it is equal to n+sod(n) for n = 321211231340299 and 321211231340308.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1111403 + ... + 25370409.

It is an arithmetic number, because the mean of its divisors is an integer number (17763416017920).

Almost surely, 2^{321211231340342} is an apocalyptic number.

321211231340342 is a deficient number, since it is larger than the sum of its proper divisors (247218081233098).

321211231340342 is a wasteful number, since it uses less digits than its factorization.

321211231340342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24289556.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 321211231340342 its reverse (243043132112123), we get a palindrome (564254363452465).

The spelling of 321211231340342 in words is "three hundred twenty-one trillion, two hundred eleven billion, two hundred thirty-one million, three hundred forty thousand, three hundred forty-two".