201143124011 has 4 divisors (see below), whose sum is σ = 201145508952. Its totient is φ = 201140739072.

The previous prime is 201143123977. The next prime is 201143124029. The reversal of 201143124011 is 110421341102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201143124011 - 2²² = 201138929707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201143124031) 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, 1061141 + ... + 1236246.

It is an arithmetic number, because the mean of its divisors is an integer number (50286377238).

Almost surely, 2^201143124011 is an apocalyptic number.

201143124011 is a deficient number, since it is larger than the sum of its proper divisors (2384941).

201143124011 is an equidigital number, since it uses as much as digits as its factorization.

201143124011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384940.

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

Adding to 201143124011 its reverse (110421341102), we get a palindrome (311564465113).

The spelling of 201143124011 in words is "two hundred one billion, one hundred forty-three million, one hundred twenty-four thousand, eleven".