201111326061 has 16 divisors (see below), whose sum is σ = 280929712128. Its totient is φ = 127812682800.

The previous prime is 201111326047. The next prime is 201111326063. The reversal of 201111326061 is 160623111102.

It is a happy number.

It is not a de Polignac number, because 201111326061 - 2¹⁵ = 201111293293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111326063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16131735 + ... + 16144196.

It is an arithmetic number, because the mean of its divisors is an integer number (17558107008).

Almost surely, 2^201111326061 is an apocalyptic number.

It is an amenable number.

201111326061 is a deficient number, since it is larger than the sum of its proper divisors (79818386067).

201111326061 is a wasteful number, since it uses less digits than its factorization.

201111326061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32276032.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 201111326061 its reverse (160623111102), we get a palindrome (361734437163).

The spelling of 201111326061 in words is "two hundred one billion, one hundred eleven million, three hundred twenty-six thousand, sixty-one".