203422042123 has 2 divisors, whose sum is σ = 203422042124. Its totient is φ = 203422042122.

The previous prime is 203422042081. The next prime is 203422042151. The reversal of 203422042123 is 321240224302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203422042123 - 2¹³ = 203422033931 is a prime.

It is not a weakly prime, because it can be changed into another prime (203422042193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101711021061 + 101711021062.

It is an arithmetic number, because the mean of its divisors is an integer number (101711021062).

Almost surely, 2^203422042123 is an apocalyptic number.

203422042123 is a deficient number, since it is larger than the sum of its proper divisors (1).

203422042123 is an equidigital number, since it uses as much as digits as its factorization.

203422042123 is an evil number, because the sum of its binary digits is even.

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

Adding to 203422042123 its reverse (321240224302), we get a palindrome (524662266425).

The spelling of 203422042123 in words is "two hundred three billion, four hundred twenty-two million, forty-two thousand, one hundred twenty-three".