204102403 has 2 divisors, whose sum is σ = 204102404. Its totient is φ = 204102402.

The previous prime is 204102373. The next prime is 204102421. The reversal of 204102403 is 304201402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204102403 - 2¹⁷ = 203971331 is a prime.

It is not a weakly prime, because it can be changed into another prime (204102443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102051201 + 102051202.

It is an arithmetic number, because the mean of its divisors is an integer number (102051202).

Almost surely, 2^204102403 is an apocalyptic number.

204102403 is a deficient number, since it is larger than the sum of its proper divisors (1).

204102403 is an equidigital number, since it uses as much as digits as its factorization.

204102403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204102403 is about 14286.4412293615. The cubic root of 204102403 is about 588.7750156082.

Adding to 204102403 its reverse (304201402), we get a palindrome (508303805).

The spelling of 204102403 in words is "two hundred four million, one hundred two thousand, four hundred three".