12120120343 has 4 divisors (see below), whose sum is σ = 12182919088. Its totient is φ = 12057321600.

The previous prime is 12120120323. The next prime is 12120120359. The reversal of 12120120343 is 34302102121.

It is a happy number.

12120120343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12120120343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12120120343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120120323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31399083 + ... + 31399468.

It is an arithmetic number, because the mean of its divisors is an integer number (3045729772).

Almost surely, 2^12120120343 is an apocalyptic number.

12120120343 is a deficient number, since it is larger than the sum of its proper divisors (62798745).

12120120343 is an equidigital number, since it uses as much as digits as its factorization.

12120120343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62798744.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12120120343 its reverse (34302102121), we get a palindrome (46422222464).

The spelling of 12120120343 in words is "twelve billion, one hundred twenty million, one hundred twenty thousand, three hundred forty-three".