20430034303305 has 64 divisors (see below), whose sum is σ = 36087087108096. Its totient is φ = 9868917009600.

The previous prime is 20430034303243. The next prime is 20430034303331. The reversal of 20430034303305 is 50330343003402.

It is not a de Polignac number, because 20430034303305 - 2²⁴ = 20430017526089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3522522 + ... + 7298508.

It is an arithmetic number, because the mean of its divisors is an integer number (563860736064).

Almost surely, 2^{20430034303305} is an apocalyptic number.

It is an amenable number.

20430034303305 is a deficient number, since it is larger than the sum of its proper divisors (15657052804791).

20430034303305 is a wasteful number, since it uses less digits than its factorization.

20430034303305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776299 (or 3776277 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 30.

Adding to 20430034303305 its reverse (50330343003402), we get a palindrome (70760377306707).

The spelling of 20430034303305 in words is "twenty trillion, four hundred thirty billion, thirty-four million, three hundred three thousand, three hundred five".