20110200 has 144 divisors (see below), whose sum is σ = 68771640. Its totient is φ = 4857600.

The previous prime is 20110183. The next prime is 20110217. The reversal of 20110200 is 201102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20110183) and next prime (20110217).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72462 + ... + 72738.

Almost surely, 2^20110200 is an apocalyptic number.

20110200 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 20110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34385820).

20110200 is an abundant number, since it is smaller than the sum of its proper divisors (48661440).

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

20110200 is a wasteful number, since it uses less digits than its factorization.

20110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 20110200 is about 4484.4397643407. The cubic root of 20110200 is about 271.9393968212.

Adding to 20110200 its reverse (201102), we get a palindrome (20311302).

Multiplying 20110200 by its reverse (201102), we get a square (4044201440400 = 2011020²).

20110200 divided by its reverse (201102) gives a square (100 = 10²).

It can be divided in two parts, 201 and 10200, that added together give a palindrome (10401).

The spelling of 20110200 in words is "twenty million, one hundred ten thousand, two hundred".