2311233120011 has 2 divisors, whose sum is σ = 2311233120012. Its totient is φ = 2311233120010.

The previous prime is 2311233119989. The next prime is 2311233120013. The reversal of 2311233120011 is 1100213321132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311233120011 is a prime.

Together with 2311233120013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2311233120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155616560005 + 1155616560006.

It is an arithmetic number, because the mean of its divisors is an integer number (1155616560006).

Almost surely, 2^{2311233120011} is an apocalyptic number.

2311233120011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311233120011 is an equidigital number, since it uses as much as digits as its factorization.

2311233120011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2311233120011 its reverse (1100213321132), we get a palindrome (3411446441143).

The spelling of 2311233120011 in words is "two trillion, three hundred eleven billion, two hundred thirty-three million, one hundred twenty thousand, eleven".