12120440113203 has 24 divisors (see below), whose sum is σ = 16609822412400. Its totient is φ = 7861595495040.

The previous prime is 12120440113193. The next prime is 12120440113217. The reversal of 12120440113203 is 30231104402121.

It is not a de Polignac number, because 12120440113203 - 2⁹ = 12120440112691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120440113603) 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, 151183773 + ... + 151263921.

It is an arithmetic number, because the mean of its divisors is an integer number (692075933850).

Almost surely, 2^{12120440113203} is an apocalyptic number.

12120440113203 is a deficient number, since it is larger than the sum of its proper divisors (4489382299197).

12120440113203 is an equidigital number, since it uses as much as digits as its factorization.

12120440113203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117047 (or 117010 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12120440113203 its reverse (30231104402121), we get a palindrome (42351544515324).

The spelling of 12120440113203 in words is "twelve trillion, one hundred twenty billion, four hundred forty million, one hundred thirteen thousand, two hundred three".