12120003121303 has 32 divisors (see below), whose sum is σ = 15430529917440. Its totient is φ = 9245563776000.

The previous prime is 12120003121273. The next prime is 12120003121349. The reversal of 12120003121303 is 30312130002121.

It is a cyclic number.

It is not a de Polignac number, because 12120003121303 - 2²¹ = 12120001024151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120003122303) 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, 4440078 + ... + 6629803.

It is an arithmetic number, because the mean of its divisors is an integer number (482204059920).

Almost surely, 2^{12120003121303} is an apocalyptic number.

12120003121303 is a deficient number, since it is larger than the sum of its proper divisors (3310526796137).

12120003121303 is a wasteful number, since it uses less digits than its factorization.

12120003121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070199.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12120003121303 its reverse (30312130002121), we get a palindrome (42432133123424).

The spelling of 12120003121303 in words is "twelve trillion, one hundred twenty billion, three million, one hundred twenty-one thousand, three hundred three".