2012343040423 has 4 divisors (see below), whose sum is σ = 2013398282520. Its totient is φ = 2011287798328.

The previous prime is 2012343040403. The next prime is 2012343040441. The reversal of 2012343040423 is 3240403432102.

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-2012343040423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012343040391 and 2012343040400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012343040403) 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, 527618188 + ... + 527622001.

It is an arithmetic number, because the mean of its divisors is an integer number (503349570630).

Almost surely, 2^{2012343040423} is an apocalyptic number.

2012343040423 is a deficient number, since it is larger than the sum of its proper divisors (1055242097).

2012343040423 is a wasteful number, since it uses less digits than its factorization.

2012343040423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055242096.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 2012343040423 its reverse (3240403432102), we get a palindrome (5252746472525).

The spelling of 2012343040423 in words is "two trillion, twelve billion, three hundred forty-three million, forty thousand, four hundred twenty-three".