201101131211 has 4 divisors (see below), whose sum is σ = 201113260152. Its totient is φ = 201089002272.

The previous prime is 201101131177. The next prime is 201101131237. The reversal of 201101131211 is 112131101102.

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 201101131211 - 2¹⁰ = 201101130187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201101131271) 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, 6039566 + ... + 6072771.

It is an arithmetic number, because the mean of its divisors is an integer number (50278315038).

Almost surely, 2^201101131211 is an apocalyptic number.

201101131211 is a deficient number, since it is larger than the sum of its proper divisors (12128941).

201101131211 is a wasteful number, since it uses less digits than its factorization.

201101131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12128940.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 201101131211 its reverse (112131101102), we get a palindrome (313232232313).

The spelling of 201101131211 in words is "two hundred one billion, one hundred one million, one hundred thirty-one thousand, two hundred eleven".