204378103 has 2 divisors, whose sum is σ = 204378104. Its totient is φ = 204378102.

The previous prime is 204378091. The next prime is 204378113. The reversal of 204378103 is 301873402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204378103 - 2¹⁷ = 204247031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204378113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102189051 + 102189052.

It is an arithmetic number, because the mean of its divisors is an integer number (102189052).

Almost surely, 2^204378103 is an apocalyptic number.

204378103 is a deficient number, since it is larger than the sum of its proper divisors (1).

204378103 is an equidigital number, since it uses as much as digits as its factorization.

204378103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 204378103 is about 14296.0869821081. The cubic root of 204378103 is about 589.0400006271.

The spelling of 204378103 in words is "two hundred four million, three hundred seventy-eight thousand, one hundred three".