342720841321 has 8 divisors (see below), whose sum is σ = 349815772800. Its totient is φ = 335668780080.

The previous prime is 342720841273. The next prime is 342720841339. The reversal of 342720841321 is 123148027243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 342720841321 - 2⁷ = 342720841193 is a prime.

It is a super-2 number, since 2×342720841321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342720871321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10701406 + ... + 10733383.

It is an arithmetic number, because the mean of its divisors is an integer number (43726971600).

Almost surely, 2^342720841321 is an apocalyptic number.

It is an amenable number.

342720841321 is a deficient number, since it is larger than the sum of its proper divisors (7094931479).

342720841321 is a wasteful number, since it uses less digits than its factorization.

342720841321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21435119.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 342720841321 its reverse (123148027243), we get a palindrome (465868868564).

The spelling of 342720841321 in words is "three hundred forty-two billion, seven hundred twenty million, eight hundred forty-one thousand, three hundred twenty-one".