201143111211 has 48 divisors (see below), whose sum is σ = 341096930304. Its totient is φ = 111807231552.

The previous prime is 201143111209. The next prime is 201143111261. The reversal of 201143111211 is 112111341102.

201143111211 is a `hidden beast` number, since 2 + 0 + 11 + 431 + 11 + 211 = 666.

It is not a de Polignac number, because 201143111211 - 2¹ = 201143111209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201143111261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15898090 + ... + 15910736.

It is an arithmetic number, because the mean of its divisors is an integer number (7106186048).

Almost surely, 2^201143111211 is an apocalyptic number.

201143111211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201143111211 is a deficient number, since it is larger than the sum of its proper divisors (139953819093).

201143111211 is a wasteful number, since it uses less digits than its factorization.

201143111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19520 (or 19517 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 201143111211 its reverse (112111341102), we get a palindrome (313254452313).

The spelling of 201143111211 in words is "two hundred one billion, one hundred forty-three million, one hundred eleven thousand, two hundred eleven".