201111203144 has 16 divisors (see below), whose sum is σ = 379962007920. Its totient is φ = 99788001040.

The previous prime is 201111203129. The next prime is 201111203171. The reversal of 201111203144 is 441302111102.

201111203144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95948954 + ... + 95951049.

It is an arithmetic number, because the mean of its divisors is an integer number (23747625495).

Almost surely, 2^201111203144 is an apocalyptic number.

It is an amenable number.

201111203144 is a deficient number, since it is larger than the sum of its proper divisors (178850804776).

201111203144 is a wasteful number, since it uses less digits than its factorization.

201111203144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191900140 (or 191900136 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 201111203144 its reverse (441302111102), we get a palindrome (642413314246).

The spelling of 201111203144 in words is "two hundred one billion, one hundred eleven million, two hundred three thousand, one hundred forty-four".