20203320329 has 2 divisors, whose sum is σ = 20203320330. Its totient is φ = 20203320328.

The previous prime is 20203320307. The next prime is 20203320391. The reversal of 20203320329 is 92302330202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14601097225 + 5602223104 = 120835^2 + 74848^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203320329 - 2⁸ = 20203320073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203320298 and 20203320307.

It is not a weakly prime, because it can be changed into another prime (20203328329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101660164 + 10101660165.

It is an arithmetic number, because the mean of its divisors is an integer number (10101660165).

Almost surely, 2^20203320329 is an apocalyptic number.

It is an amenable number.

20203320329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203320329 is an equidigital number, since it uses as much as digits as its factorization.

20203320329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 20203320329 in words is "twenty billion, two hundred three million, three hundred twenty thousand, three hundred twenty-nine".