201240320 has 36 divisors (see below), whose sum is σ = 482036520. Its totient is φ = 80495616.

The previous prime is 201240307. The next prime is 201240331. The reversal of 201240320 is 23042102.

It is a junction number, because it is equal to n+sod(n) for n = 201240295 and 201240304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77330 + ... + 79889.

Almost surely, 2^201240320 is an apocalyptic number.

201240320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201240320 is an abundant number, since it is smaller than the sum of its proper divisors (280796200).

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

201240320 is an equidigital number, since it uses as much as digits as its factorization.

201240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157240 (or 157226 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 201240320 is about 14185.9197798380. The cubic root of 201240320 is about 586.0099630606.

Adding to 201240320 its reverse (23042102), we get a palindrome (224282422).

The spelling of 201240320 in words is "two hundred one million, two hundred forty thousand, three hundred twenty".