421324212143 has 4 divisors (see below), whose sum is σ = 427258356048. Its totient is φ = 415390068240.

The previous prime is 421324212139. The next prime is 421324212151. The reversal of 421324212143 is 341212423124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421324212143 - 2² = 421324212139 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 (421324212173) 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 3 ways as a sum of consecutive naturals, for example, 2967071846 + ... + 2967071987.

It is an arithmetic number, because the mean of its divisors is an integer number (106814589012).

Almost surely, 2^421324212143 is an apocalyptic number.

421324212143 is a deficient number, since it is larger than the sum of its proper divisors (5934143905).

421324212143 is an equidigital number, since it uses as much as digits as its factorization.

421324212143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934143904.

The product of its digits is 9216, while the sum is 29.

Adding to 421324212143 its reverse (341212423124), we get a palindrome (762536635267).

The spelling of 421324212143 in words is "four hundred twenty-one billion, three hundred twenty-four million, two hundred twelve thousand, one hundred forty-three".