2012123212003 has 4 divisors (see below), whose sum is σ = 2012284233000. Its totient is φ = 2011962191008.

The previous prime is 2012123211949. The next prime is 2012123212009. The reversal of 2012123212003 is 3002123212102.

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 2012123212003 - 2⁹ = 2012123211491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012123212009) 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, 80491753 + ... + 80516746.

It is an arithmetic number, because the mean of its divisors is an integer number (503071058250).

Almost surely, 2^{2012123212003} is an apocalyptic number.

2012123212003 is a deficient number, since it is larger than the sum of its proper divisors (161020997).

2012123212003 is a wasteful number, since it uses less digits than its factorization.

2012123212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161020996.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2012123212003 its reverse (3002123212102), we get a palindrome (5014246424105).

Subtracting 2012123212003 from its reverse (3002123212102), we obtain a palindrome (990000000099).

The spelling of 2012123212003 in words is "two trillion, twelve billion, one hundred twenty-three million, two hundred twelve thousand, three".