20020100203 has 4 divisors (see below), whose sum is σ = 20020478400. Its totient is φ = 20019722008.

The previous prime is 20020100159. The next prime is 20020100227. The reversal of 20020100203 is 30200102002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20020100203 - 2¹³ = 20020092011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020100203.

It is not an unprimeable number, because it can be changed into a prime (20020100603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93628 + ... + 220921.

It is an arithmetic number, because the mean of its divisors is an integer number (5005119600).

Almost surely, 2^20020100203 is an apocalyptic number.

20020100203 is a deficient number, since it is larger than the sum of its proper divisors (378197).

20020100203 is an equidigital number, since it uses as much as digits as its factorization.

20020100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378196.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20020100203 its reverse (30200102002), we get a palindrome (50220202205).

The spelling of 20020100203 in words is "twenty billion, twenty million, one hundred thousand, two hundred three".