20303355005 has 16 divisors (see below), whose sum is σ = 24768253440. Its totient is φ = 15974956608.

The previous prime is 20303354987. The next prime is 20303355043. The reversal of 20303355005 is 50055330302.

It is a cyclic number.

It is not a de Polignac number, because 20303355005 - 2²⁶ = 20236246141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17150 + ... + 202239.

It is an arithmetic number, because the mean of its divisors is an integer number (1548015840).

Almost surely, 2^20303355005 is an apocalyptic number.

It is an amenable number.

20303355005 is a deficient number, since it is larger than the sum of its proper divisors (4464898435).

20303355005 is a wasteful number, since it uses less digits than its factorization.

20303355005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219700.

The product of its (nonzero) digits is 6750, while the sum is 26.

Adding to 20303355005 its reverse (50055330302), we get a palindrome (70358685307).

The spelling of 20303355005 in words is "twenty billion, three hundred three million, three hundred fifty-five thousand, five".