10000020011 has 4 divisors (see below), whose sum is σ = 10000784472. Its totient is φ = 9999255552.

The previous prime is 10000019989. The next prime is 10000020029. The reversal of 10000020011 is 11002000001.

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 10000020011 - 2⁶ = 10000019947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000019977 and 10000020004.

It is not an unprimeable number, because it can be changed into a prime (10000020911) 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 3 ways as a sum of consecutive naturals, for example, 362261 + ... + 388886.

It is an arithmetic number, because the mean of its divisors is an integer number (2500196118).

Almost surely, 2^10000020011 is an apocalyptic number.

10000020011 is a deficient number, since it is larger than the sum of its proper divisors (764461).

10000020011 is an equidigital number, since it uses as much as digits as its factorization.

10000020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764460.

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

Adding to 10000020011 its reverse (11002000001), we get a palindrome (21002020012).

The spelling of 10000020011 in words is "ten billion, twenty thousand, eleven".