12011021002003 has 4 divisors (see below), whose sum is σ = 12123273534840. Its totient is φ = 11898768469168.

The previous prime is 12011021001989. The next prime is 12011021002091. The reversal of 12011021002003 is 30020012011021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011021002003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011021002093) 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, 56126266258 + ... + 56126266471.

It is an arithmetic number, because the mean of its divisors is an integer number (3030818383710).

Almost surely, 2^{12011021002003} is an apocalyptic number.

12011021002003 is a deficient number, since it is larger than the sum of its proper divisors (112252532837).

12011021002003 is a wasteful number, since it uses less digits than its factorization.

12011021002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112252532836.

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

Adding to 12011021002003 its reverse (30020012011021), we get a palindrome (42031033013024).

The spelling of 12011021002003 in words is "twelve trillion, eleven billion, twenty-one million, two thousand, three".