2311123 has 2 divisors, whose sum is σ = 2311124. Its totient is φ = 2311122.

The previous prime is 2311117. The next prime is 2311147. The reversal of 2311123 is 3211132.

2311123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2311123 - 2¹⁷ = 2180051 is a prime.

It is a super-2 number, since 2×2311123² = 10682579042258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2311163) 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, 1155561 + 1155562.

It is an arithmetic number, because the mean of its divisors is an integer number (1155562).

2^2311123 is an apocalyptic number.

2311123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311123 is an equidigital number, since it uses as much as digits as its factorization.

2311123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36, while the sum is 13.

The square root of 2311123 is about 1520.2378103442. The cubic root of 2311123 is about 132.2130588894.

Adding to 2311123 its reverse (3211132), we get a palindrome (5522255).

Subtracting 2311123 from its reverse (3211132), we obtain a palindrome (900009).

The spelling of 2311123 in words is "two million, three hundred eleven thousand, one hundred twenty-three".