12001120021003 has 4 divisors (see below), whose sum is σ = 12001165124680. Its totient is φ = 12001074917328.

The previous prime is 12001120021001. The next prime is 12001120021091. The reversal of 12001120021003 is 30012002110021.

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 12001120021003 - 2¹ = 12001120021001 is a prime.

It is a super-2 number, since 2×12001120021003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001120021001) 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, 22150338 + ... + 22685671.

It is an arithmetic number, because the mean of its divisors is an integer number (3000291281170).

Almost surely, 2^{12001120021003} is an apocalyptic number.

12001120021003 is a deficient number, since it is larger than the sum of its proper divisors (45103677).

12001120021003 is an equidigital number, since it uses as much as digits as its factorization.

12001120021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45103676.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12001120021003 its reverse (30012002110021), we get a palindrome (42013122131024).

The spelling of 12001120021003 in words is "twelve trillion, one billion, one hundred twenty million, twenty-one thousand, three".