421402344342341 has 8 divisors (see below), whose sum is σ = 432843936255480. Its totient is φ = 409963507132608.

The previous prime is 421402344342323. The next prime is 421402344342361. The reversal of 421402344342341 is 143243443204124.

It can be written as a sum of positive squares in 4 ways, for example, as 350096057409316 + 71306286933025 = 18710854^2 + 8444305^2 .

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 421402344342341 - 2¹⁴ = 421402344325957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421402344342361) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 688365746 + ... + 688977651.

It is an arithmetic number, because the mean of its divisors is an integer number (54105492031935).

Almost surely, 2^{421402344342341} is an apocalyptic number.

It is an amenable number.

421402344342341 is a deficient number, since it is larger than the sum of its proper divisors (11441591913139).

421402344342341 is a wasteful number, since it uses less digits than its factorization.

421402344342341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377351703.

The product of its (nonzero) digits is 884736, while the sum is 41.

Adding to 421402344342341 its reverse (143243443204124), we get a palindrome (564645787546465).

The spelling of 421402344342341 in words is "four hundred twenty-one trillion, four hundred two billion, three hundred forty-four million, three hundred forty-two thousand, three hundred forty-one".