2012423243 has 4 divisors (see below), whose sum is σ = 2012699520. Its totient is φ = 2012146968.

The previous prime is 2012423201. The next prime is 2012423251. The reversal of 2012423243 is 3423242102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2012423243 - 2⁸ = 2012422987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012423293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126908 + ... + 141881.

It is an arithmetic number, because the mean of its divisors is an integer number (503174880).

Almost surely, 2^2012423243 is an apocalyptic number.

2012423243 is a deficient number, since it is larger than the sum of its proper divisors (276277).

2012423243 is an equidigital number, since it uses as much as digits as its factorization.

2012423243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276276.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2012423243 is about 44860.0406040833. The cubic root of 2012423243 is about 1262.5243845632.

Adding to 2012423243 its reverse (3423242102), we get a palindrome (5435665345).

The spelling of 2012423243 in words is "two billion, twelve million, four hundred twenty-three thousand, two hundred forty-three".