12111203020203 has 48 divisors (see below), whose sum is σ = 20012274181120. Its totient is φ = 6914052390528.

The previous prime is 12111203020181. The next prime is 12111203020253. The reversal of 12111203020203 is 30202030211121.

It is not a de Polignac number, because 12111203020203 - 2¹⁶ = 12111202954667 is a prime.

It is a super-2 number, since 2×12111203020203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111203020253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304518903 + ... + 304558671.

Almost surely, 2^{12111203020203} is an apocalyptic number.

12111203020203 is a deficient number, since it is larger than the sum of its proper divisors (7901071160917).

12111203020203 is a wasteful number, since it uses less digits than its factorization.

12111203020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44296 (or 44293 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12111203020203 its reverse (30202030211121), we get a palindrome (42313233231324).

The spelling of 12111203020203 in words is "twelve trillion, one hundred eleven billion, two hundred three million, twenty thousand, two hundred three".