2012123 has 2 divisors, whose sum is σ = 2012124. Its totient is φ = 2012122.

The previous prime is 2012113. The next prime is 2012147. The reversal of 2012123 is 3212102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012123 - 2¹⁰ = 2011099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006061 + 1006062.

It is an arithmetic number, because the mean of its divisors is an integer number (1006062).

2^2012123 is an apocalyptic number.

2012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012123 is an equidigital number, since it uses as much as digits as its factorization.

2012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2012123 is about 1418.4932146471. The cubic root of 2012123 is about 126.2461594100.

Adding to 2012123 its reverse (3212102), we get a palindrome (5224225).

The spelling of 2012123 in words is "two million, twelve thousand, one hundred twenty-three".