321420234120042 has 16 divisors (see below), whose sum is σ = 651646502052480. Its totient is φ = 105672405737952.

The previous prime is 321420234120017. The next prime is 321420234120071. The reversal of 321420234120042 is 240021432024123.

It is a super-2 number, since 2×321420234120042² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321420234119991 and 321420234120009.

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, 366918075042 + ... + 366918075917.

It is an arithmetic number, because the mean of its divisors is an integer number (40727906378280).

Almost surely, 2^{321420234120042} is an apocalyptic number.

321420234120042 is an abundant number, since it is smaller than the sum of its proper divisors (330226267932438).

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

321420234120042 is a wasteful number, since it uses less digits than its factorization.

321420234120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733836151037.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 321420234120042 its reverse (240021432024123), we get a palindrome (561441666144165).

The spelling of 321420234120042 in words is "three hundred twenty-one trillion, four hundred twenty billion, two hundred thirty-four million, one hundred twenty thousand, forty-two".