201110128 has 40 divisors (see below), whose sum is σ = 404527680. Its totient is φ = 96741120.

The previous prime is 201110093. The next prime is 201110131. The reversal of 201110128 is 821011102.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169698 + ... + 170878.

It is an arithmetic number, because the mean of its divisors is an integer number (10113192).

Almost surely, 2^201110128 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 201110128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202263840).

201110128 is an abundant number, since it is smaller than the sum of its proper divisors (203417552).

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

201110128 is a wasteful number, since it uses less digits than its factorization.

201110128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 201110128 is about 14181.3302620029. The cubic root of 201110128 is about 585.8835631627.

The spelling of 201110128 in words is "two hundred one million, one hundred ten thousand, one hundred twenty-eight".