120123111303 has 24 divisors (see below), whose sum is σ = 191415697200. Its totient is φ = 72118938240.

The previous prime is 120123111293. The next prime is 120123111331. The reversal of 120123111303 is 303111321021.

120123111303 is a `hidden beast` number, since 120 + 1 + 231 + 11 + 303 = 666.

It is not a de Polignac number, because 120123111303 - 2²⁰ = 120122062727 is a prime.

It is a super-2 number, since 2×120123111303² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120123111343) 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, 12515853 + ... + 12525446.

It is an arithmetic number, because the mean of its divisors is an integer number (7975654050).

Almost surely, 2^120123111303 is an apocalyptic number.

120123111303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120123111303 is a deficient number, since it is larger than the sum of its proper divisors (71292585897).

120123111303 is a wasteful number, since it uses less digits than its factorization.

120123111303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041359 (or 25041356 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 120123111303 its reverse (303111321021), we get a palindrome (423234432324).

The spelling of 120123111303 in words is "one hundred twenty billion, one hundred twenty-three million, one hundred eleven thousand, three hundred three".