12012231230321 has 24 divisors (see below), whose sum is σ = 13988366789760. Its totient is φ = 10285183494432.

The previous prime is 12012231230303. The next prime is 12012231230333. The reversal of 12012231230321 is 12303213221021.

It is a de Polignac number, because none of the positive numbers 2^k-12012231230321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012231230371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233934776 + ... + 233986118.

It is an arithmetic number, because the mean of its divisors is an integer number (582848616240).

Almost surely, 2^{12012231230321} is an apocalyptic number.

It is an amenable number.

12012231230321 is a deficient number, since it is larger than the sum of its proper divisors (1976135559439).

12012231230321 is a wasteful number, since it uses less digits than its factorization.

12012231230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56373 (or 56366 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12012231230321 its reverse (12303213221021), we get a palindrome (24315444451342).

The spelling of 12012231230321 in words is "twelve trillion, twelve billion, two hundred thirty-one million, two hundred thirty thousand, three hundred twenty-one".