204244123 has 2 divisors, whose sum is σ = 204244124. Its totient is φ = 204244122.

The previous prime is 204244097. The next prime is 204244127. The reversal of 204244123 is 321442402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204244123 - 2¹³ = 204235931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204244094 and 204244103.

It is not a weakly prime, because it can be changed into another prime (204244127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102122061 + 102122062.

It is an arithmetic number, because the mean of its divisors is an integer number (102122062).

Almost surely, 2^204244123 is an apocalyptic number.

204244123 is a deficient number, since it is larger than the sum of its proper divisors (1).

204244123 is an equidigital number, since it uses as much as digits as its factorization.

204244123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 204244123 is about 14291.4003162741. The cubic root of 204244123 is about 588.9112574959.

Adding to 204244123 its reverse (321442402), we get a palindrome (525686525).

The spelling of 204244123 in words is "two hundred four million, two hundred forty-four thousand, one hundred twenty-three".