1001010020011 has 4 divisors (see below), whose sum is σ = 1001014111800. Its totient is φ = 1001005928224.

The previous prime is 1001010019973. The next prime is 1001010020033. The reversal of 1001010020011 is 1100200101001.

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 1001010020011 - 2⁷ = 1001010019883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001010019976 and 1001010020003.

It is not an unprimeable number, because it can be changed into a prime (1001010020411) 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, 1653901 + ... + 2176558.

It is an arithmetic number, because the mean of its divisors is an integer number (250253527950).

Almost surely, 2^{1001010020011} is an apocalyptic number.

1001010020011 is a deficient number, since it is larger than the sum of its proper divisors (4091789).

1001010020011 is an equidigital number, since it uses as much as digits as its factorization.

1001010020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091788.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1001010020011 its reverse (1100200101001), we get a palindrome (2101210121012).

The spelling of 1001010020011 in words is "one trillion, one billion, ten million, twenty thousand, eleven".