201143213101 has 4 divisors (see below), whose sum is σ = 201267300604. Its totient is φ = 201019125600.

The previous prime is 201143213083. The next prime is 201143213123. The reversal of 201143213101 is 101312341102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 116877831876 + 84265381225 = 341874^2 + 290285^2 .

It is a cyclic number.

It is not a de Polignac number, because 201143213101 - 2⁷ = 201143212973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201143213171) 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, 62041320 + ... + 62044561.

It is an arithmetic number, because the mean of its divisors is an integer number (50316825151).

Almost surely, 2^201143213101 is an apocalyptic number.

It is an amenable number.

201143213101 is a deficient number, since it is larger than the sum of its proper divisors (124087503).

201143213101 is a wasteful number, since it uses less digits than its factorization.

201143213101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124087502.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 201143213101 its reverse (101312341102), we get a palindrome (302455554203).

The spelling of 201143213101 in words is "two hundred one billion, one hundred forty-three million, two hundred thirteen thousand, one hundred one".