1001021100011 has 4 divisors (see below), whose sum is σ = 1015961713512. Its totient is φ = 986080486512.

The previous prime is 1001021099971. The next prime is 1001021100031. The reversal of 1001021100011 is 1100011201001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001021100011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001021100031) 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, 7470306650 + ... + 7470306783.

It is an arithmetic number, because the mean of its divisors is an integer number (253990428378).

Almost surely, 2^{1001021100011} is an apocalyptic number.

1001021100011 is a deficient number, since it is larger than the sum of its proper divisors (14940613501).

1001021100011 is an equidigital number, since it uses as much as digits as its factorization.

1001021100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14940613500.

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

Adding to 1001021100011 its reverse (1100011201001), we get a palindrome (2101032301012).

The spelling of 1001021100011 in words is "one trillion, one billion, twenty-one million, one hundred thousand, eleven".