20470203 has 12 divisors (see below), whose sum is σ = 31842720. Its totient is φ = 12596976.

The previous prime is 20470189. The next prime is 20470217. The reversal of 20470203 is 30207402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20470189) and next prime (20470217).

It is not a de Polignac number, because 20470203 - 2⁴ = 20470187 is a prime.

It is a super-2 number, since 2×20470203² = 838058421722418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20477203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87363 + ... + 87596.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^20470203 is an apocalyptic number.

20470203 is a deficient number, since it is larger than the sum of its proper divisors (11372517).

20470203 is a wasteful number, since it uses less digits than its factorization.

20470203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174978 (or 174975 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20470203 is about 4524.4008443108. The cubic root of 20470203 is about 273.5525178579.

Adding to 20470203 its reverse (30207402), we get a palindrome (50677605).

It can be divided in two parts, 204 and 70203, that added together give a palindrome (70407).

The spelling of 20470203 in words is "twenty million, four hundred seventy thousand, two hundred three".