203242001 has 4 divisors (see below), whose sum is σ = 206026212. Its totient is φ = 200457792.

The previous prime is 203241991. The next prime is 203242009. The reversal of 203242001 is 100242302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95082001 + 108160000 = 9751^2 + 10400^2 .

It is a cyclic number.

It is not a de Polignac number, because 203242001 - 2⁶ = 203241937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203242009) 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, 1391996 + ... + 1392141.

It is an arithmetic number, because the mean of its divisors is an integer number (51506553).

Almost surely, 2^203242001 is an apocalyptic number.

It is an amenable number.

203242001 is a deficient number, since it is larger than the sum of its proper divisors (2784211).

203242001 is an equidigital number, since it uses as much as digits as its factorization.

203242001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784210.

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

The square root of 203242001 is about 14256.2968894450. The cubic root of 203242001 is about 587.9465152965.

Adding to 203242001 its reverse (100242302), we get a palindrome (303484303).

The spelling of 203242001 in words is "two hundred three million, two hundred forty-two thousand, one".