204430005523 has 2 divisors, whose sum is σ = 204430005524. Its totient is φ = 204430005522.

The previous prime is 204430005511. The next prime is 204430005547. The reversal of 204430005523 is 325500034402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204430005523 - 2⁵ = 204430005491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204430005491 and 204430005500.

It is not a weakly prime, because it can be changed into another prime (204430005583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102215002761 + 102215002762.

It is an arithmetic number, because the mean of its divisors is an integer number (102215002762).

Almost surely, 2^204430005523 is an apocalyptic number.

204430005523 is a deficient number, since it is larger than the sum of its proper divisors (1).

204430005523 is an equidigital number, since it uses as much as digits as its factorization.

204430005523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 204430005523 its reverse (325500034402), we get a palindrome (529930039925).

The spelling of 204430005523 in words is "two hundred four billion, four hundred thirty million, five thousand, five hundred twenty-three".