20303107 has 16 divisors (see below), whose sum is σ = 22851072. Its totient is φ = 17881120.

The previous prime is 20303071. The next prime is 20303111. The reversal of 20303107 is 70130302.

It is a cyclic number.

It is not a de Polignac number, because 20303107 - 2¹¹ = 20301059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89328 + ... + 89554.

It is an arithmetic number, because the mean of its divisors is an integer number (1428192).

Almost surely, 2^20303107 is an apocalyptic number.

20303107 is a deficient number, since it is larger than the sum of its proper divisors (2547965).

20303107 is a wasteful number, since it uses less digits than its factorization.

20303107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 20303107 is about 4505.8969140450. The cubic root of 20303107 is about 272.8061570363.

Adding to 20303107 its reverse (70130302), we get a palindrome (90433409).

The spelling of 20303107 in words is "twenty million, three hundred three thousand, one hundred seven".