12111302030203 has 4 divisors (see below), whose sum is σ = 12111374572528. Its totient is φ = 12111229487880.

The previous prime is 12111302030189. The next prime is 12111302030237. The reversal of 12111302030203 is 30203020311121.

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 12111302030203 - 2⁵ = 12111302030171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111302037203) 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, 36020151 + ... + 36354832.

It is an arithmetic number, because the mean of its divisors is an integer number (3027843643132).

Almost surely, 2^{12111302030203} is an apocalyptic number.

12111302030203 is a deficient number, since it is larger than the sum of its proper divisors (72542325).

12111302030203 is an equidigital number, since it uses as much as digits as its factorization.

12111302030203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72542324.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12111302030203 its reverse (30203020311121), we get a palindrome (42314322341324).

The spelling of 12111302030203 in words is "twelve trillion, one hundred eleven billion, three hundred two million, thirty thousand, two hundred three".