200240423 has 2 divisors, whose sum is σ = 200240424. Its totient is φ = 200240422.

The previous prime is 200240401. The next prime is 200240429. The reversal of 200240423 is 324042002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200240423 - 2¹⁰ = 200239399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200240429) 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 as a sum of consecutive naturals, namely, 100120211 + 100120212.

It is an arithmetic number, because the mean of its divisors is an integer number (100120212).

Almost surely, 2^200240423 is an apocalyptic number.

200240423 is a deficient number, since it is larger than the sum of its proper divisors (1).

200240423 is an equidigital number, since it uses as much as digits as its factorization.

200240423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 200240423 is about 14150.6333073824. The cubic root of 200240423 is about 585.0377875121.

Adding to 200240423 its reverse (324042002), we get a palindrome (524282425).

The spelling of 200240423 in words is "two hundred million, two hundred forty thousand, four hundred twenty-three".