201000111111011 has 4 divisors (see below), whose sum is σ = 211579064327400. Its totient is φ = 190421157894624.

The previous prime is 201000111110923. The next prime is 201000111111013. The reversal of 201000111111011 is 110111111000102.

It is a happy number.

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-201000111111011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201000111110983 and 201000111111001.

It is not an unprimeable number, because it can be changed into a prime (201000111111013) 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, 5289476608166 + ... + 5289476608203.

It is an arithmetic number, because the mean of its divisors is an integer number (52894766081850).

Almost surely, 2^{201000111111011} is an apocalyptic number.

201000111111011 is a deficient number, since it is larger than the sum of its proper divisors (10578953216389).

201000111111011 is a wasteful number, since it uses less digits than its factorization.

201000111111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10578953216388.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 201000111111011 its reverse (110111111000102), we get a palindrome (311111222111113).

The spelling of 201000111111011 in words is "two hundred one trillion, one hundred eleven million, one hundred eleven thousand, eleven".