2012243330423 has 4 divisors (see below), whose sum is σ = 2050210185768. Its totient is φ = 1974276475080.

The previous prime is 2012243330399. The next prime is 2012243330453. The reversal of 2012243330423 is 3240333422102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012243330423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012243330453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18983427593 + ... + 18983427698.

It is an arithmetic number, because the mean of its divisors is an integer number (512552546442).

Almost surely, 2^{2012243330423} is an apocalyptic number.

2012243330423 is a deficient number, since it is larger than the sum of its proper divisors (37966855345).

2012243330423 is an equidigital number, since it uses as much as digits as its factorization.

2012243330423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37966855344.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 2012243330423 its reverse (3240333422102), we get a palindrome (5252576752525).

The spelling of 2012243330423 in words is "two trillion, twelve billion, two hundred forty-three million, three hundred thirty thousand, four hundred twenty-three".