20303530529 has 2 divisors, whose sum is σ = 20303530530. Its totient is φ = 20303530528.

The previous prime is 20303530519. The next prime is 20303530601. The reversal of 20303530529 is 92503530302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17929210000 + 2374320529 = 133900^2 + 48727^2 .

It is a cyclic number.

It is not a de Polignac number, because 20303530529 - 2²⁴ = 20286753313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20303530495 and 20303530504.

It is not a weakly prime, because it can be changed into another prime (20303530519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151765264 + 10151765265.

It is an arithmetic number, because the mean of its divisors is an integer number (10151765265).

Almost surely, 2^20303530529 is an apocalyptic number.

It is an amenable number.

20303530529 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303530529 is an equidigital number, since it uses as much as digits as its factorization.

20303530529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 32.

The spelling of 20303530529 in words is "twenty billion, three hundred three million, five hundred thirty thousand, five hundred twenty-nine".