201000001011 has 16 divisors (see below), whose sum is σ = 268426383360. Its totient is φ = 133786981440.

The previous prime is 201000001001. The next prime is 201000001073. The reversal of 201000001011 is 110100000102.

It is not a de Polignac number, because 201000001011 - 2⁵ = 201000000979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201000001001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4962106 + ... + 5002448.

It is an arithmetic number, because the mean of its divisors is an integer number (16776648960).

Almost surely, 2^201000001011 is an apocalyptic number.

201000001011 is a deficient number, since it is larger than the sum of its proper divisors (67426382349).

201000001011 is a wasteful number, since it uses less digits than its factorization.

201000001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42946.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 201000001011 its reverse (110100000102), we get a palindrome (311100001113).

Subtracting from 201000001011 its reverse (110100000102), we obtain a palindrome (90900000909).

It can be divided in two parts, 20100000101 and 1, that added together give a palindrome (20100000102).

The spelling of 201000001011 in words is "two hundred one billion, one thousand, eleven".