200001242023423 has 4 divisors (see below), whose sum is σ = 200004802150840. Its totient is φ = 199997681896008.

The previous prime is 200001242023417. The next prime is 200001242023439. The reversal of 200001242023423 is 324320242100002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200001242023423 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 (200001242023823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779979440 + ... + 1780091797.

It is an arithmetic number, because the mean of its divisors is an integer number (50001200537710).

Almost surely, 2^{200001242023423} is an apocalyptic number.

200001242023423 is a deficient number, since it is larger than the sum of its proper divisors (3560127417).

200001242023423 is an equidigital number, since it uses as much as digits as its factorization.

200001242023423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560127416.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 200001242023423 its reverse (324320242100002), we get a palindrome (524321484123425).

The spelling of 200001242023423 in words is "two hundred trillion, one billion, two hundred forty-two million, twenty-three thousand, four hundred twenty-three".