1001200110011 has 4 divisors (see below), whose sum is σ = 1001216230872. Its totient is φ = 1001183989152.

The previous prime is 1001200109993. The next prime is 1001200110019. The reversal of 1001200110011 is 1100110021001.

It is a happy number.

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 1001200110011 - 2¹⁸ = 1001199847867 is a prime.

It is a Duffinian number.

1001200110011 is a modest number, since divided by 110011 gives 10012 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1001200110019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7966910 + ... + 8091603.

It is an arithmetic number, because the mean of its divisors is an integer number (250304057718).

Almost surely, 2^{1001200110011} is an apocalyptic number.

1001200110011 is a deficient number, since it is larger than the sum of its proper divisors (16120861).

1001200110011 is an equidigital number, since it uses as much as digits as its factorization.

1001200110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16120860.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1001200110011 its reverse (1100110021001), we get a palindrome (2101310131012).

The spelling of 1001200110011 in words is "one trillion, one billion, two hundred million, one hundred ten thousand, eleven".