201200401 has 4 divisors (see below), whose sum is σ = 201509172. Its totient is φ = 200891632.

The previous prime is 201200381. The next prime is 201200429. The reversal of 201200401 is 104002102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104002102 = 2 ⋅52001051.

It can be written as a sum of positive squares in 2 ways, for example, as 12852225 + 188348176 = 3585^2 + 13724^2 .

It is a cyclic number.

It is not a de Polignac number, because 201200401 - 2⁵ = 201200369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201200471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153406 + ... + 154711.

It is an arithmetic number, because the mean of its divisors is an integer number (50377293).

Almost surely, 2^201200401 is an apocalyptic number.

It is an amenable number.

201200401 is a deficient number, since it is larger than the sum of its proper divisors (308771).

201200401 is an equidigital number, since it uses as much as digits as its factorization.

201200401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308770.

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

The square root of 201200401 is about 14184.5127163396. The cubic root of 201200401 is about 585.9712125778.

Adding to 201200401 its reverse (104002102), we get a palindrome (305202503).

It can be divided in two parts, 201200 and 401, that added together give a square (201601 = 449²).

The spelling of 201200401 in words is "two hundred one million, two hundred thousand, four hundred one".