20121212120003 has 8 divisors (see below), whose sum is σ = 20233870937280. Its totient is φ = 20008556078760.

The previous prime is 20121212119993. The next prime is 20121212120017. The reversal of 20121212120003 is 30002121212102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20121212120003 - 2¹⁰ = 20121212118979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121212120083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14809676 + ... + 16111142.

It is an arithmetic number, because the mean of its divisors is an integer number (2529233867160).

Almost surely, 2^{20121212120003} is an apocalyptic number.

20121212120003 is a deficient number, since it is larger than the sum of its proper divisors (112658817277).

20121212120003 is a wasteful number, since it uses less digits than its factorization.

20121212120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388017.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20121212120003 its reverse (30002121212102), we get a palindrome (50123333332105).

The spelling of 20121212120003 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, one hundred twenty thousand, three".