20100011100011 has 4 divisors (see below), whose sum is σ = 20590255273224. Its totient is φ = 19609766926800.

The previous prime is 20100011099897. The next prime is 20100011100161. The reversal of 20100011100011 is 11000111000102.

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 20100011100011 - 2¹⁰ = 20100011098987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100011000011) 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, 245122086545 + ... + 245122086626.

It is an arithmetic number, because the mean of its divisors is an integer number (5147563818306).

Almost surely, 2^{20100011100011} is an apocalyptic number.

20100011100011 is a deficient number, since it is larger than the sum of its proper divisors (490244173213).

20100011100011 is an equidigital number, since it uses as much as digits as its factorization.

20100011100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490244173212.

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

Adding to 20100011100011 its reverse (11000111000102), we get a palindrome (31100122100113).

Subtracting from 20100011100011 its reverse (11000111000102), we obtain a palindrome (9099900099909).

The spelling of 20100011100011 in words is "twenty trillion, one hundred billion, eleven million, one hundred thousand, eleven".