12123120313303 has 4 divisors (see below), whose sum is σ = 12151118282128. Its totient is φ = 12095122344480.

The previous prime is 12123120313277. The next prime is 12123120313319. The reversal of 12123120313303 is 30331302132121.

12123120313303 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 not a de Polignac number, because 12123120313303 - 2⁹ = 12123120312791 is a prime.

It is a super-2 number, since 2×12123120313303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123120313363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13998983763 + ... + 13998984628.

It is an arithmetic number, because the mean of its divisors is an integer number (3037779570532).

Almost surely, 2^{12123120313303} is an apocalyptic number.

12123120313303 is a deficient number, since it is larger than the sum of its proper divisors (27997968825).

12123120313303 is an equidigital number, since it uses as much as digits as its factorization.

12123120313303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27997968824.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 12123120313303 its reverse (30331302132121), we get a palindrome (42454422445424).

The spelling of 12123120313303 in words is "twelve trillion, one hundred twenty-three billion, one hundred twenty million, three hundred thirteen thousand, three hundred three".