20302203 has 16 divisors (see below), whose sum is σ = 28966400. Its totient is φ = 12610080.

The previous prime is 20302189. The next prime is 20302207. The reversal of 20302203 is 30220302.

It is not a de Polignac number, because 20302203 - 2⁵ = 20302171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302207) 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, 558 + ... + 6396.

It is an arithmetic number, because the mean of its divisors is an integer number (1810400).

Almost surely, 2^20302203 is an apocalyptic number.

20302203 is a deficient number, since it is larger than the sum of its proper divisors (8664197).

20302203 is a wasteful number, since it uses less digits than its factorization.

20302203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20302203 is about 4505.7965999366. The cubic root of 20302203 is about 272.8021080595.

Adding to 20302203 its reverse (30220302), we get a palindrome (50522505).

The spelling of 20302203 in words is "twenty million, three hundred two thousand, two hundred three".