201230120 has 128 divisors (see below), whose sum is σ = 567302400. Its totient is φ = 62539776.

The previous prime is 201230093. The next prime is 201230129. The reversal of 201230120 is 21032102.

It is a happy number.

It is a super-2 number, since 2×201230120² = 80987122390428800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201230129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214292 + ... + 215228.

It is an arithmetic number, because the mean of its divisors is an integer number (4432050).

Almost surely, 2^201230120 is an apocalyptic number.

201230120 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 201230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283651200).

201230120 is an abundant number, since it is smaller than the sum of its proper divisors (366072280).

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

201230120 is a wasteful number, since it uses less digits than its factorization.

201230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 201230120 is about 14185.5602638740. The cubic root of 201230120 is about 586.0000621246. Note that the first 4 decimals are identical.

Adding to 201230120 its reverse (21032102), we get a palindrome (222262222).

The spelling of 201230120 in words is "two hundred one million, two hundred thirty thousand, one hundred twenty".