2020123 has 6 divisors (see below), whose sum is σ = 2349996. Its totient is φ = 1731492.

The previous prime is 2020091. The next prime is 2020147. The reversal of 2020123 is 3210202.

It is not a de Polignac number, because 2020123 - 2⁵ = 2020091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20565 + ... + 20662.

It is an arithmetic number, because the mean of its divisors is an integer number (391666).

2^2020123 is an apocalyptic number.

2020123 is a deficient number, since it is larger than the sum of its proper divisors (329873).

2020123 is an equidigital number, since it uses as much as digits as its factorization.

2020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41241 (or 41234 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2020123 is about 1421.3103109455. The cubic root of 2020123 is about 126.4132521957.

Adding to 2020123 its reverse (3210202), we get a palindrome (5230325).

The spelling of 2020123 in words is "two million, twenty thousand, one hundred twenty-three".