2000636123 has 4 divisors (see below), whose sum is σ = 2049432168. Its totient is φ = 1951840080.

The previous prime is 2000636081. The next prime is 2000636129. The reversal of 2000636123 is 3216360002.

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 2000636123 - 2²⁴ = 1983858907 is a prime.

It is a super-2 number, since 2×2000636123² = 8005089793304942258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000636129) 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, 24397961 + ... + 24398042.

It is an arithmetic number, because the mean of its divisors is an integer number (512358042).

Almost surely, 2^2000636123 is an apocalyptic number.

2000636123 is a deficient number, since it is larger than the sum of its proper divisors (48796045).

2000636123 is an equidigital number, since it uses as much as digits as its factorization.

2000636123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48796044.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2000636123 is about 44728.4710559169. The cubic root of 2000636123 is about 1260.0546131951.

Adding to 2000636123 its reverse (3216360002), we get a palindrome (5216996125).

The spelling of 2000636123 in words is "two billion, six hundred thirty-six thousand, one hundred twenty-three".