2012321230123 has 4 divisors (see below), whose sum is σ = 2012398644168. Its totient is φ = 2012243816080.

The previous prime is 2012321230109. The next prime is 2012321230147. The reversal of 2012321230123 is 3210321232102.

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 2012321230123 - 2¹³ = 2012321221931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012321230094 and 2012321230103.

It is not an unprimeable number, because it can be changed into a prime (2012321230193) 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, 38668018 + ... + 38720023.

It is an arithmetic number, because the mean of its divisors is an integer number (503099661042).

Almost surely, 2^{2012321230123} is an apocalyptic number.

2012321230123 is a deficient number, since it is larger than the sum of its proper divisors (77414045).

2012321230123 is an equidigital number, since it uses as much as digits as its factorization.

2012321230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77414044.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2012321230123 its reverse (3210321232102), we get a palindrome (5222642462225).

The spelling of 2012321230123 in words is "two trillion, twelve billion, three hundred twenty-one million, two hundred thirty thousand, one hundred twenty-three".