12011230203203 has 64 divisors (see below), whose sum is σ = 15549708754944. Its totient is φ = 9003851136000.

The previous prime is 12011230203179. The next prime is 12011230203211. The reversal of 12011230203203 is 30230203211021.

It is a de Polignac number, because none of the positive numbers 2^k-12011230203203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011230203223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1656032525 + ... + 1656039777.

It is an arithmetic number, because the mean of its divisors is an integer number (242964199296).

Almost surely, 2^{12011230203203} is an apocalyptic number.

12011230203203 is a deficient number, since it is larger than the sum of its proper divisors (3538478551741).

12011230203203 is a wasteful number, since it uses less digits than its factorization.

12011230203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11316.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12011230203203 its reverse (30230203211021), we get a palindrome (42241433414224).

The spelling of 12011230203203 in words is "twelve trillion, eleven billion, two hundred thirty million, two hundred three thousand, two hundred three".