201117000 has 256 divisors, whose sum is σ = 733524480. Its totient is φ = 44928000.

The previous prime is 201116999. The next prime is 201117019. The reversal of 201117000 is 711102.

201117000 is digitally balanced in base 3, 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 a congruent number.

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, 1280922 + ... + 1281078.

It is an arithmetic number, because the mean of its divisors is an integer number (2865330).

Almost surely, 2^201117000 is an apocalyptic number.

201117000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201117000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366762240).

201117000 is an abundant number, since it is smaller than the sum of its proper divisors (532407480).

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

201117000 is a wasteful number, since it uses less digits than its factorization.

201117000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 235 counting only the distinct ones).

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

The square root of 201117000 is about 14181.5725503204. The cubic root of 201117000 is about 585.8902363654.

Adding to 201117000 its reverse (711102), we get a palindrome (201828102).

The spelling of 201117000 in words is "two hundred one million, one hundred seventeen thousand".