1001000200 has 24 divisors (see below), whose sum is σ = 2327325930. Its totient is φ = 400400000.

The previous prime is 1001000173. The next prime is 1001000233. The reversal of 1001000200 is 20001001.

It can be written as a sum of positive squares in 3 ways, for example, as 523402884 + 477597316 = 22878^2 + 21854^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a self number, because there is not a number n which added to its sum of digits gives 1001000200.

It is an unprimeable number.

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, 2502301 + ... + 2502700.

Almost surely, 2^1001000200 is an apocalyptic number.

1001000200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001000200 is an abundant number, since it is smaller than the sum of its proper divisors (1326325730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001000200 is a wasteful number, since it uses less digits than its factorization.

1001000200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005017 (or 5005008 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 1001000200 is about 31638.5871998103. The cubic root of 1001000200 is about 1000.3332889062. Note that the first 3 decimals are identical.

Adding to 1001000200 its reverse (20001001), we get a palindrome (1021001201).

The spelling of 1001000200 in words is "one billion, one million, two hundred", and thus it is an aban number.