20300000020305 has 64 divisors (see below), whose sum is σ = 34018877601792. Its totient is φ = 10317242073600.

The previous prime is 20300000020297. The next prime is 20300000020379. The reversal of 20300000020305 is 50302000000302.

It is not a de Polignac number, because 20300000020305 - 2³ = 20300000020297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 551716989 + ... + 551753781.

It is an arithmetic number, because the mean of its divisors is an integer number (531544962528).

Almost surely, 2^{20300000020305} is an apocalyptic number.

It is an amenable number.

20300000020305 is a deficient number, since it is larger than the sum of its proper divisors (13718877581487).

20300000020305 is a wasteful number, since it uses less digits than its factorization.

20300000020305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42758.

The product of its (nonzero) digits is 180, while the sum is 15.

Adding to 20300000020305 its reverse (50302000000302), we get a palindrome (70602000020607).

The spelling of 20300000020305 in words is "twenty trillion, three hundred billion, twenty thousand, three hundred five".