201443112 has 112 divisors (see below), whose sum is σ = 610090740. Its totient is φ = 61959168.

The previous prime is 201443093. The next prime is 201443113. The reversal of 201443112 is 211344102.

It can be written as a sum of positive squares in 2 ways, for example, as 198640836 + 2802276 = 14094^2 + 1674^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201443113) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 74488 + ... + 77144.

Almost surely, 2^201443112 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 201443112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305045370).

201443112 is an abundant number, since it is smaller than the sum of its proper divisors (408647628).

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

201443112 is a wasteful number, since it uses less digits than its factorization.

201443112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 201443112 is about 14193.0656307931. The cubic root of 201443112 is about 586.2067397911.

Adding to 201443112 its reverse (211344102), we get a palindrome (412787214).

The spelling of 201443112 in words is "two hundred one million, four hundred forty-three thousand, one hundred twelve".