203041001 has 4 divisors (see below), whose sum is σ = 206369604. Its totient is φ = 199712400.

The previous prime is 203040899. The next prime is 203041031. The reversal of 203041001 is 100140302.

It is a happy number.

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 94381225 + 108659776 = 9715^2 + 10424^2 .

It is a cyclic number.

It is not a de Polignac number, because 203041001 - 2¹⁴ = 203024617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203041031) 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, 1664210 + ... + 1664331.

It is an arithmetic number, because the mean of its divisors is an integer number (51592401).

Almost surely, 2^203041001 is an apocalyptic number.

It is an amenable number.

203041001 is a deficient number, since it is larger than the sum of its proper divisors (3328603).

203041001 is an equidigital number, since it uses as much as digits as its factorization.

203041001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328602.

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

The square root of 203041001 is about 14249.2456291553. The cubic root of 203041001 is about 587.7526311120.

Adding to 203041001 its reverse (100140302), we get a palindrome (303181303).

The spelling of 203041001 in words is "two hundred three million, forty-one thousand, one".