201111123013012 has 12 divisors (see below), whose sum is σ = 352029702517780. Its totient is φ = 100531208007936.

The previous prime is 201111123013001. The next prime is 201111123013019. The reversal of 201111123013012 is 210310321111102.

It can be written as a sum of positive squares in 2 ways, for example, as 172282320404496 + 28828802608516 = 13125636^2 + 5369246^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111123013019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6088356063 + ... + 6088389094.

Almost surely, 2^{201111123013012} is an apocalyptic number.

It is an amenable number.

201111123013012 is a deficient number, since it is larger than the sum of its proper divisors (150918579504768).

201111123013012 is a wasteful number, since it uses less digits than its factorization.

201111123013012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12176749290 (or 12176749288 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 201111123013012 its reverse (210310321111102), we get a palindrome (411421444124114).

The spelling of 201111123013012 in words is "two hundred one trillion, one hundred eleven billion, one hundred twenty-three million, thirteen thousand, twelve".