12111320203 has 2 divisors, whose sum is σ = 12111320204. Its totient is φ = 12111320202.

The previous prime is 12111320201. The next prime is 12111320227. The reversal of 12111320203 is 30202311121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12111320203 - 2¹ = 12111320201 is a prime.

It is a super-2 number, since 2×12111320203² (a number of 21 digits) contains 22 as substring.

Together with 12111320201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12111320201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055660101 + 6055660102.

It is an arithmetic number, because the mean of its divisors is an integer number (6055660102).

Almost surely, 2^12111320203 is an apocalyptic number.

12111320203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111320203 is an equidigital number, since it uses as much as digits as its factorization.

12111320203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12111320203 its reverse (30202311121), we get a palindrome (42313631324).

The spelling of 12111320203 in words is "twelve billion, one hundred eleven million, three hundred twenty thousand, two hundred three".