100240201 has 2 divisors, whose sum is σ = 100240202. Its totient is φ = 100240200.

The previous prime is 100240199. The next prime is 100240271. The reversal of 100240201 is 102042001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97990201 + 2250000 = 9899^2 + 1500^2 .

It is an emirp because it is prime and its reverse (102042001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100240201 - 2¹ = 100240199 is a prime.

Together with 100240199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100240271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50120100 + 50120101.

It is an arithmetic number, because the mean of its divisors is an integer number (50120101).

Almost surely, 2^100240201 is an apocalyptic number.

It is an amenable number.

100240201 is a deficient number, since it is larger than the sum of its proper divisors (1).

100240201 is an equidigital number, since it uses as much as digits as its factorization.

100240201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 100240201 is about 10012.0028465837. The cubic root of 100240201 is about 464.5302242914.

Adding to 100240201 its reverse (102042001), we get a palindrome (202282202).

The spelling of 100240201 in words is "one hundred million, two hundred forty thousand, two hundred one".