20100002011 has 4 divisors (see below), whose sum is σ = 20100291624. Its totient is φ = 20099712400.

The previous prime is 20100001997. The next prime is 20100002023. The reversal of 20100002011 is 11020000102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20100002011 - 2¹³ = 20099993819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100001985 and 20100002003.

It is not an unprimeable number, because it can be changed into a prime (20100002911) 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, 28191 + ... + 202471.

It is an arithmetic number, because the mean of its divisors is an integer number (5025072906).

Almost surely, 2^20100002011 is an apocalyptic number.

20100002011 is a deficient number, since it is larger than the sum of its proper divisors (289613).

20100002011 is a wasteful number, since it uses less digits than its factorization.

20100002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289612.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20100002011 its reverse (11020000102), we get a palindrome (31120002113).

The spelling of 20100002011 in words is "twenty billion, one hundred million, two thousand, eleven".