12120420003 has 16 divisors (see below), whose sum is σ = 16718501280. Its totient is φ = 7804498176.

The previous prime is 12120419989. The next prime is 12120420007. The reversal of 12120420003 is 30002402121.

It is not a de Polignac number, because 12120420003 - 2⁹ = 12120419491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120420007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383308 + ... + 413721.

It is an arithmetic number, because the mean of its divisors is an integer number (1044906330).

Almost surely, 2^12120420003 is an apocalyptic number.

12120420003 is a deficient number, since it is larger than the sum of its proper divisors (4598081277).

12120420003 is a wasteful number, since it uses less digits than its factorization.

12120420003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797206.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12120420003 its reverse (30002402121), we get a palindrome (42122822124).

The spelling of 12120420003 in words is "twelve billion, one hundred twenty million, four hundred twenty thousand, three".