423205216141 has 4 divisors (see below), whose sum is σ = 423209958300. Its totient is φ = 423200473984.

The previous prime is 423205216129. The next prime is 423205216223. The reversal of 423205216141 is 141612502324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 319286022916 + 103919193225 = 565054^2 + 322365^2 .

It is a cyclic number.

It is not a de Polignac number, because 423205216141 - 2¹⁹ = 423204691853 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 (423205216741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234596 + ... + 2416573.

It is an arithmetic number, because the mean of its divisors is an integer number (105802489575).

Almost surely, 2^423205216141 is an apocalyptic number.

It is an amenable number.

423205216141 is a deficient number, since it is larger than the sum of its proper divisors (4742159).

423205216141 is an equidigital number, since it uses as much as digits as its factorization.

423205216141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742158.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 423205216141 its reverse (141612502324), we get a palindrome (564817718465).

The spelling of 423205216141 in words is "four hundred twenty-three billion, two hundred five million, two hundred sixteen thousand, one hundred forty-one".