20303024200505 has 16 divisors (see below), whose sum is σ = 24708272690304. Its totient is φ = 16012853239680.

The previous prime is 20303024200493. The next prime is 20303024200531. The reversal of 20303024200505 is 50500242030302.

It is not a de Polignac number, because 20303024200505 - 2²⁴ = 20303007423289 is a prime.

It is a super-4 number, since 4×20303024200505⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11440901 + ... + 13095810.

It is an arithmetic number, because the mean of its divisors is an integer number (1544267043144).

Almost surely, 2^{20303024200505} is an apocalyptic number.

It is an amenable number.

20303024200505 is a deficient number, since it is larger than the sum of its proper divisors (4405248489799).

20303024200505 is a wasteful number, since it uses less digits than its factorization.

20303024200505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24539056.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 20303024200505 its reverse (50500242030302), we get a palindrome (70803266230807).

The spelling of 20303024200505 in words is "twenty trillion, three hundred three billion, twenty-four million, two hundred thousand, five hundred five".