201230144443211 has 4 divisors (see below), whose sum is σ = 216709386323472. Its totient is φ = 185750902562952.

The previous prime is 201230144443199. The next prime is 201230144443231. The reversal of 201230144443211 is 112344441032102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201230144443211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201230144443231) 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, 7739620940111 + ... + 7739620940136.

It is an arithmetic number, because the mean of its divisors is an integer number (54177346580868).

Almost surely, 2^{201230144443211} is an apocalyptic number.

201230144443211 is a deficient number, since it is larger than the sum of its proper divisors (15479241880261).

201230144443211 is a wasteful number, since it uses less digits than its factorization.

201230144443211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15479241880260.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 201230144443211 its reverse (112344441032102), we get a palindrome (313574585475313).

The spelling of 201230144443211 in words is "two hundred one trillion, two hundred thirty billion, one hundred forty-four million, four hundred forty-three thousand, two hundred eleven".