2012310323123 has 4 divisors (see below), whose sum is σ = 2012324142840. Its totient is φ = 2012296503408.

The previous prime is 2012310323119. The next prime is 2012310323129. The reversal of 2012310323123 is 3213230132102.

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 2012310323123 - 2² = 2012310323119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012310323129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6689090 + ... + 6983447.

It is an arithmetic number, because the mean of its divisors is an integer number (503081035710).

Almost surely, 2^{2012310323123} is an apocalyptic number.

2012310323123 is a deficient number, since it is larger than the sum of its proper divisors (13819717).

2012310323123 is a wasteful number, since it uses less digits than its factorization.

2012310323123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13819716.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2012310323123 its reverse (3213230132102), we get a palindrome (5225540455225).

The spelling of 2012310323123 in words is "two trillion, twelve billion, three hundred ten million, three hundred twenty-three thousand, one hundred twenty-three".