12003021042 has 16 divisors (see below), whose sum is σ = 24058121472. Its totient is φ = 3992327120.

The previous prime is 12003021007. The next prime is 12003021049. The reversal of 12003021042 is 24012030021.

It is not an unprimeable number, because it can be changed into a prime (12003021049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2166978 + ... + 2172509.

It is an arithmetic number, because the mean of its divisors is an integer number (1503632592).

Almost surely, 2^12003021042 is an apocalyptic number.

12003021042 is an abundant number, since it is smaller than the sum of its proper divisors (12055100430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12003021042 is a wasteful number, since it uses less digits than its factorization.

12003021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339953.

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

Adding to 12003021042 its reverse (24012030021), we get a palindrome (36015051063).

The spelling of 12003021042 in words is "twelve billion, three million, twenty-one thousand, forty-two".