2020012123 has 2 divisors, whose sum is σ = 2020012124. Its totient is φ = 2020012122.

The previous prime is 2020012109. The next prime is 2020012129. The reversal of 2020012123 is 3212100202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020012123 - 2²¹ = 2017914971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020012129) 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 as a sum of consecutive naturals, namely, 1010006061 + 1010006062.

It is an arithmetic number, because the mean of its divisors is an integer number (1010006062).

Almost surely, 2^2020012123 is an apocalyptic number.

2020012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020012123 is an equidigital number, since it uses as much as digits as its factorization.

2020012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2020012123 is about 44944.5449748910. The cubic root of 2020012123 is about 1264.1093936977.

Adding to 2020012123 its reverse (3212100202), we get a palindrome (5232112325).

It can be divided in two parts, 20200 and 12123, that added together give a palindrome (32323).

The spelling of 2020012123 in words is "two billion, twenty million, twelve thousand, one hundred twenty-three".