12003033021 has 32 divisors (see below), whose sum is σ = 18504710400. Its totient is φ = 6778805760.

The previous prime is 12003032959. The next prime is 12003033041. The reversal of 12003033021 is 12033030021.

It is not a de Polignac number, because 12003033021 - 2⁷ = 12003032893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003033041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 929791 + ... + 942611.

It is an arithmetic number, because the mean of its divisors is an integer number (578272200).

Almost surely, 2^12003033021 is an apocalyptic number.

It is an amenable number.

12003033021 is a deficient number, since it is larger than the sum of its proper divisors (6501677379).

12003033021 is a wasteful number, since it uses less digits than its factorization.

12003033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 12003033021 its reverse (12033030021), we get a palindrome (24036063042).

The spelling of 12003033021 in words is "twelve billion, three million, thirty-three thousand, twenty-one".