203243343441 has 4 divisors (see below), whose sum is σ = 270991124592. Its totient is φ = 135495562292.

The previous prime is 203243343421. The next prime is 203243343451. The reversal of 203243343441 is 144343342302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203243343441 - 2⁶ = 203243343377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203243343421) 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, 33873890571 + ... + 33873890576.

It is an arithmetic number, because the mean of its divisors is an integer number (67747781148).

Almost surely, 2^203243343441 is an apocalyptic number.

It is an amenable number.

203243343441 is a deficient number, since it is larger than the sum of its proper divisors (67747781151).

203243343441 is an equidigital number, since it uses as much as digits as its factorization.

203243343441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67747781150.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 203243343441 its reverse (144343342302), we get a palindrome (347586685743).

The spelling of 203243343441 in words is "two hundred three billion, two hundred forty-three million, three hundred forty-three thousand, four hundred forty-one".