203240441421233 has 2 divisors, whose sum is σ = 203240441421234. Its totient is φ = 203240441421232.

The previous prime is 203240441421229. The next prime is 203240441421247. The reversal of 203240441421233 is 332124144042302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203237755797904 + 2685623329 = 14256148^2 + 51823^2 .

It is a cyclic number.

It is not a de Polignac number, because 203240441421233 - 2² = 203240441421229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203240441421193 and 203240441421202.

It is not a weakly prime, because it can be changed into another prime (203240441421203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101620220710616 + 101620220710617.

It is an arithmetic number, because the mean of its divisors is an integer number (101620220710617).

Almost surely, 2^{203240441421233} is an apocalyptic number.

It is an amenable number.

203240441421233 is a deficient number, since it is larger than the sum of its proper divisors (1).

203240441421233 is an equidigital number, since it uses as much as digits as its factorization.

203240441421233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 203240441421233 its reverse (332124144042302), we get a palindrome (535364585463535).

The spelling of 203240441421233 in words is "two hundred three trillion, two hundred forty billion, four hundred forty-one million, four hundred twenty-one thousand, two hundred thirty-three".