340220121110321 has 8 divisors (see below), whose sum is σ = 351994268842920. Its totient is φ = 328448801339008.

The previous prime is 340220121110249. The next prime is 340220121110329. The reversal of 340220121110321 is 123011121022043.

It can be written as a sum of positive squares in 4 ways, for example, as 60268997682721 + 279951123427600 = 7763311^2 + 16731740^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340220121110321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340220121110329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706745546 + ... + 707226771.

It is an arithmetic number, because the mean of its divisors is an integer number (43999283605365).

Almost surely, 2^{340220121110321} is an apocalyptic number.

It is an amenable number.

340220121110321 is a deficient number, since it is larger than the sum of its proper divisors (11774147732599).

340220121110321 is a wasteful number, since it uses less digits than its factorization.

340220121110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413980643.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 340220121110321 its reverse (123011121022043), we get a palindrome (463231242132364).

The spelling of 340220121110321 in words is "three hundred forty trillion, two hundred twenty billion, one hundred twenty-one million, one hundred ten thousand, three hundred twenty-one".