12111103303231 has 2 divisors, whose sum is σ = 12111103303232. Its totient is φ = 12111103303230.

The previous prime is 12111103303199. The next prime is 12111103303253. The reversal of 12111103303231 is 13230330111121.

12111103303231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (12111103303253) can be obtained adding 12111103303231 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12111103303231 - 2⁵ = 12111103303199 is a prime.

It is a super-2 number, since 2×12111103303231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12111103303631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055551651615 + 6055551651616.

It is an arithmetic number, because the mean of its divisors is an integer number (6055551651616).

Almost surely, 2^{12111103303231} is an apocalyptic number.

12111103303231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111103303231 is an equidigital number, since it uses as much as digits as its factorization.

12111103303231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 12111103303231 its reverse (13230330111121), we get a palindrome (25341433414352).

The spelling of 12111103303231 in words is "twelve trillion, one hundred eleven billion, one hundred three million, three hundred three thousand, two hundred thirty-one".