204203442403 has 2 divisors, whose sum is σ = 204203442404. Its totient is φ = 204203442402.

The previous prime is 204203442341. The next prime is 204203442449. The reversal of 204203442403 is 304244302402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204203442403 - 2³³ = 195613507811 is a prime.

It is not a weakly prime, because it can be changed into another prime (204203442103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102101721201 + 102101721202.

It is an arithmetic number, because the mean of its divisors is an integer number (102101721202).

Almost surely, 2^204203442403 is an apocalyptic number.

204203442403 is a deficient number, since it is larger than the sum of its proper divisors (1).

204203442403 is an equidigital number, since it uses as much as digits as its factorization.

204203442403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 204203442403 its reverse (304244302402), we get a palindrome (508447744805).

The spelling of 204203442403 in words is "two hundred four billion, two hundred three million, four hundred forty-two thousand, four hundred three".