201102020011 has 4 divisors (see below), whose sum is σ = 201110371024. Its totient is φ = 201093669000.

The previous prime is 201102019933. The next prime is 201102020027. The reversal of 201102020011 is 110020201102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201102020011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201102020011.

It is not an unprimeable number, because it can be changed into a prime (201102060011) 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, 4139280 + ... + 4187581.

It is an arithmetic number, because the mean of its divisors is an integer number (50277592756).

Almost surely, 2^201102020011 is an apocalyptic number.

201102020011 is a deficient number, since it is larger than the sum of its proper divisors (8351013).

201102020011 is an equidigital number, since it uses as much as digits as its factorization.

201102020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351012.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201102020011 its reverse (110020201102), we get a palindrome (311122221113).

The spelling of 201102020011 in words is "two hundred one billion, one hundred two million, twenty thousand, eleven".