12011321230303 has 4 divisors (see below), whose sum is σ = 12049942842288. Its totient is φ = 11972699618320.

The previous prime is 12011321230283. The next prime is 12011321230309. The reversal of 12011321230303 is 30303212311021.

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-12011321230303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011321230309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19310805526 + ... + 19310806147.

It is an arithmetic number, because the mean of its divisors is an integer number (3012485710572).

Almost surely, 2^{12011321230303} is an apocalyptic number.

12011321230303 is a deficient number, since it is larger than the sum of its proper divisors (38621611985).

12011321230303 is an equidigital number, since it uses as much as digits as its factorization.

12011321230303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38621611984.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12011321230303 its reverse (30303212311021), we get a palindrome (42314533541324).

The spelling of 12011321230303 in words is "twelve trillion, eleven billion, three hundred twenty-one million, two hundred thirty thousand, three hundred three".