1000011200 has 42 divisors (see below), whose sum is σ = 2460656496. Its totient is φ = 400003840.

The previous prime is 1000011161. The next prime is 1000011223. The reversal of 1000011200 is 21100001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 310904 + ... + 314103.

Almost surely, 2^1000011200 is an apocalyptic number.

1000011200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000011200 is an abundant number, since it is smaller than the sum of its proper divisors (1460645296).

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

1000011200 is an equidigital number, since it uses as much as digits as its factorization.

1000011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625029 (or 625014 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1000011200 is about 31622.9536887369. The cubic root of 1000011200 is about 1000.0037333194.

Adding to 1000011200 its reverse (21100001), we get a palindrome (1021111201).

The spelling of 1000011200 in words is "one billion, eleven thousand, two hundred".