2311823 has 2 divisors, whose sum is σ = 2311824. Its totient is φ = 2311822.

The previous prime is 2311819. The next prime is 2311843. The reversal of 2311823 is 3281132.

2311823 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 (2311843) can be obtained adding 2311823 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311823 - 2² = 2311819 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2311795 and 2311804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155911 + 1155912.

It is an arithmetic number, because the mean of its divisors is an integer number (1155912).

2^2311823 is an apocalyptic number.

2311823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311823 is an equidigital number, since it uses as much as digits as its factorization.

2311823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 2311823 is about 1520.4680200517. The cubic root of 2311823 is about 132.2264059072.

Adding to 2311823 its reverse (3281132), we get a palindrome (5592955).

The spelling of 2311823 in words is "two million, three hundred eleven thousand, eight hundred twenty-three".