120501210123 has 48 divisors (see below), whose sum is σ = 199751834880. Its totient is φ = 68571427392.

The previous prime is 120501210119. The next prime is 120501210161. The reversal of 120501210123 is 321012105021.

120501210123 is a `hidden beast` number, since 1 + 20 + 501 + 21 + 0 + 123 = 666.

It is not a de Polignac number, because 120501210123 - 2² = 120501210119 is a prime.

It is a super-2 number, since 2×120501210123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120501210096 and 120501210105.

It is not an unprimeable number, because it can be changed into a prime (120501210103) 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 47 ways as a sum of consecutive naturals, for example, 15708933 + ... + 15716601.

It is an arithmetic number, because the mean of its divisors is an integer number (4161496560).

Almost surely, 2^120501210123 is an apocalyptic number.

120501210123 is a deficient number, since it is larger than the sum of its proper divisors (79250624757).

120501210123 is a wasteful number, since it uses less digits than its factorization.

120501210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8688 (or 8685 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 120501210123 its reverse (321012105021), we get a palindrome (441513315144).

The spelling of 120501210123 in words is "one hundred twenty billion, five hundred one million, two hundred ten thousand, one hundred twenty-three".