2020002123 has 4 divisors (see below), whose sum is σ = 2693336168. Its totient is φ = 1346668080.

The previous prime is 2020002073. The next prime is 2020002139. The reversal of 2020002123 is 3212000202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2020002123 - 2¹² = 2019998027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020002099 and 2020002108.

It is not an unprimeable number, because it can be changed into a prime (2020002223) 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, 336667018 + ... + 336667023.

It is an arithmetic number, because the mean of its divisors is an integer number (673334042).

Almost surely, 2^2020002123 is an apocalyptic number.

2020002123 is a deficient number, since it is larger than the sum of its proper divisors (673334045).

2020002123 is an equidigital number, since it uses as much as digits as its factorization.

2020002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673334044.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2020002123 is about 44944.4337265473. The cubic root of 2020002123 is about 1264.1073077177.

Adding to 2020002123 its reverse (3212000202), we get a palindrome (5232002325).

The spelling of 2020002123 in words is "two billion, twenty million, two thousand, one hundred twenty-three".