1200000011 has 8 divisors (see below), whose sum is σ = 1403322624. Its totient is φ = 1004650920.

The previous prime is 1199999993. The next prime is 1200000041. The reversal of 1200000011 is 1100000021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200000011 - 2²² = 1195805707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1199999950 and 1200000004.

It is not an unprimeable number, because it can be changed into a prime (1200000041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1993055 + ... + 1993656.

It is an arithmetic number, because the mean of its divisors is an integer number (175415328).

Almost surely, 2^1200000011 is an apocalyptic number.

1200000011 is a deficient number, since it is larger than the sum of its proper divisors (203322613).

1200000011 is an equidigital number, since it uses as much as digits as its factorization.

1200000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986761.

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

The square root of 1200000011 is about 34641.0163101489. The cubic root of 1200000011 is about 1062.6585724296.

Adding to 1200000011 its reverse (1100000021), we get a palindrome (2300000032).

The spelling of 1200000011 in words is "one billion, two hundred million, eleven", and thus it is an aban number.