500000000001

500000000001 is an integer in decimal notation. It can be written as 5 × 10^11 + 1, and lies between 500,000,000,000 and 500,000,000,002. It is a large, odd number with no trailing zeros and is not divisible by 5.

In terms of basic arithmetic properties, 500000000001 is odd and thus not divisible by 2. The sum of its digits is 6, so it is divisible by 3. Indeed, 500000000001 ÷ 3 = 166666666667, so 500000000001 factors as 3 × 166666666667. The quotient 166666666667 is not divisible by 3 (its digit sum is 68), so 3 is a single small prime factor and the number is composite.

Beyond this simple factorization, no widely cited simple closed form factorization is noted in common reference tables. The number is therefore primarily of interest as a large composite example with a small prime factor, illustrating basic divisibility rules and integer factorization in number theory. Its congruence properties include being congruent to 0 modulo 3 and 1 modulo 4, reflecting its divisibility by 3 and its odd, non-4-divisible structure.

In summary, 500000000001 is a decimal integer equal to 5 × 10^11 + 1, it is odd, divisible by 3, and factors as 3 × 166666666667. It serves as a representative example of a large composite number with a small prime factor in mathematical contexts.