20303106 has 16 divisors (see below), whose sum is σ = 40664064. Its totient is φ = 6758064.

The previous prime is 20303071. The next prime is 20303111. The reversal of 20303106 is 60130302.

It is a super-2 number, since 2×20303106² = 824432226494472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3135 + ... + 7101.

It is an arithmetic number, because the mean of its divisors is an integer number (2541504).

Almost surely, 2^20303106 is an apocalyptic number.

20303106 is an abundant number, since it is smaller than the sum of its proper divisors (20360958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303106 is a wasteful number, since it uses less digits than its factorization.

20303106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20303106 is about 4505.8968030793. The cubic root of 20303106 is about 272.8061525574.

Adding to 20303106 its reverse (60130302), we get a palindrome (80433408).

The spelling of 20303106 in words is "twenty million, three hundred three thousand, one hundred six".