12003020203 has 4 divisors (see below), whose sum is σ = 12199791088. Its totient is φ = 11806249320.

The previous prime is 12003020201. The next prime is 12003020219. The reversal of 12003020203 is 30202030021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202030021 = 613 ⋅49269217.

It is a cyclic number.

It is not a de Polignac number, because 12003020203 - 2¹ = 12003020201 is a prime.

It is a super-2 number, since 2×12003020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12003020201) 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, 98385351 + ... + 98385472.

It is an arithmetic number, because the mean of its divisors is an integer number (3049947772).

Almost surely, 2^12003020203 is an apocalyptic number.

12003020203 is a deficient number, since it is larger than the sum of its proper divisors (196770885).

12003020203 is an equidigital number, since it uses as much as digits as its factorization.

12003020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196770884.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 12003020203 its reverse (30202030021), we get a palindrome (42205050224).

The spelling of 12003020203 in words is "twelve billion, three million, twenty thousand, two hundred three".