201131112 has 256 divisors, whose sum is σ = 674150400. Its totient is φ = 48522240.

The previous prime is 201131083. The next prime is 201131123. The reversal of 201131112 is 211131102.

201131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1535287 + ... + 1535417.

It is an arithmetic number, because the mean of its divisors is an integer number (2633400).

Almost surely, 2^201131112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201131112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337075200).

201131112 is an abundant number, since it is smaller than the sum of its proper divisors (473019288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201131112 is a wasteful number, since it uses less digits than its factorization.

201131112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 212 counting only the distinct ones).

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

The square root of 201131112 is about 14182.0700886718. The cubic root of 201131112 is about 585.9039396487.

Adding to 201131112 its reverse (211131102), we get a palindrome (412262214).

The spelling of 201131112 in words is "two hundred one million, one hundred thirty-one thousand, one hundred twelve".