12003430555 has 12 divisors (see below), whose sum is σ = 15057614880. Its totient is φ = 9185231792.

The previous prime is 12003430541. The next prime is 12003430577. The reversal of 12003430555 is 55503430021.

It is not a de Polignac number, because 12003430555 - 2²¹ = 12001333403 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2266435 + ... + 2271724.

It is an arithmetic number, because the mean of its divisors is an integer number (1254801240).

Almost surely, 2^12003430555 is an apocalyptic number.

12003430555 is a deficient number, since it is larger than the sum of its proper divisors (3054184325).

12003430555 is an equidigital number, since it uses as much as digits as its factorization.

12003430555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538210 (or 4538187 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 12003430555 its reverse (55503430021), we get a palindrome (67506860576).

The spelling of 12003430555 in words is "twelve billion, three million, four hundred thirty thousand, five hundred fifty-five".