12120212003 has 4 divisors (see below), whose sum is σ = 12134975568. Its totient is φ = 12105448440.

The previous prime is 12120211979. The next prime is 12120212009. The reversal of 12120212003 is 30021202121.

It is a happy number.

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 12120212003 - 2³⁰ = 11046470179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120212009) 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, 7380551 + ... + 7382192.

It is an arithmetic number, because the mean of its divisors is an integer number (3033743892).

Almost surely, 2^12120212003 is an apocalyptic number.

12120212003 is a deficient number, since it is larger than the sum of its proper divisors (14763565).

12120212003 is an equidigital number, since it uses as much as digits as its factorization.

12120212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14763564.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12120212003 its reverse (30021202121), we get a palindrome (42141414124).

The spelling of 12120212003 in words is "twelve billion, one hundred twenty million, two hundred twelve thousand, three".