12020110120123 has 4 divisors (see below), whose sum is σ = 13737268708720. Its totient is φ = 10302951531528.

The previous prime is 12020110120121. The next prime is 12020110120163. The reversal of 12020110120123 is 32102101102021.

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 12020110120123 - 2¹ = 12020110120121 is a prime.

It is a super-2 number, since 2×12020110120123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020110120097 and 12020110120106.

It is not an unprimeable number, because it can be changed into a prime (12020110120121) 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, 858579294288 + ... + 858579294301.

It is an arithmetic number, because the mean of its divisors is an integer number (3434317177180).

Almost surely, 2^{12020110120123} is an apocalyptic number.

12020110120123 is a deficient number, since it is larger than the sum of its proper divisors (1717158588597).

12020110120123 is an equidigital number, since it uses as much as digits as its factorization.

12020110120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717158588596.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12020110120123 its reverse (32102101102021), we get a palindrome (44122211222144).

The spelling of 12020110120123 in words is "twelve trillion, twenty billion, one hundred ten million, one hundred twenty thousand, one hundred twenty-three".