203243212441 has 4 divisors (see below), whose sum is σ = 203267242084. Its totient is φ = 203219182800.

The previous prime is 203243212433. The next prime is 203243212451. The reversal of 203243212441 is 144212342302.

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 171475497216 + 31767715225 = 414096^2 + 178235^2 .

It is a cyclic number.

It is not a de Polignac number, because 203243212441 - 2³ = 203243212433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203243212421) 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, 12002130 + ... + 12019051.

It is an arithmetic number, because the mean of its divisors is an integer number (50816810521).

Almost surely, 2^203243212441 is an apocalyptic number.

It is an amenable number.

203243212441 is a deficient number, since it is larger than the sum of its proper divisors (24029643).

203243212441 is an equidigital number, since it uses as much as digits as its factorization.

203243212441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24029642.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 203243212441 its reverse (144212342302), we get a palindrome (347455554743).

The spelling of 203243212441 in words is "two hundred three billion, two hundred forty-three million, two hundred twelve thousand, four hundred forty-one".