1201200011 has 4 divisors (see below), whose sum is σ = 1310400024. Its totient is φ = 1092000000.

The previous prime is 1201199963. The next prime is 1201200029. The reversal of 1201200011 is 1100021021.

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 1201200011 - 2²² = 1197005707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201200031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 54599990 + ... + 54600011.

It is an arithmetic number, because the mean of its divisors is an integer number (327600006).

Almost surely, 2^1201200011 is an apocalyptic number.

1201200011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201200011 is a deficient number, since it is larger than the sum of its proper divisors (109200013).

1201200011 is a wasteful number, since it uses less digits than its factorization.

1201200011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109200012.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1201200011 is about 34658.3324901819. The cubic root of 1201200011 is about 1063.0126739429.

Adding to 1201200011 its reverse (1100021021), we get a palindrome (2301221032).

The spelling of 1201200011 in words is "one billion, two hundred one million, two hundred thousand, eleven".