20110201002011 has 4 divisors (see below), whose sum is σ = 20385683207592. Its totient is φ = 19834718796432.

The previous prime is 20110201002007. The next prime is 20110201002013. The reversal of 20110201002011 is 11020010201102.

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 20110201002011 - 2² = 20110201002007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110201001983 and 20110201002001.

It is not an unprimeable number, because it can be changed into a prime (20110201002013) 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, 137741102681 + ... + 137741102826.

It is an arithmetic number, because the mean of its divisors is an integer number (5096420801898).

Almost surely, 2^{20110201002011} is an apocalyptic number.

20110201002011 is a deficient number, since it is larger than the sum of its proper divisors (275482205581).

20110201002011 is an equidigital number, since it uses as much as digits as its factorization.

20110201002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275482205580.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110201002011 its reverse (11020010201102), we get a palindrome (31130211203113).

The spelling of 20110201002011 in words is "twenty trillion, one hundred ten billion, two hundred one million, two thousand, eleven".