203222230493 has 2 divisors, whose sum is σ = 203222230494. Its totient is φ = 203222230492.

The previous prime is 203222230489. The next prime is 203222230537. The reversal of 203222230493 is 394032222302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202804314244 + 417916249 = 450338^2 + 20443^2 .

It is a cyclic number.

It is not a de Polignac number, because 203222230493 - 2² = 203222230489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203222230423) 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, 101611115246 + 101611115247.

It is an arithmetic number, because the mean of its divisors is an integer number (101611115247).

Almost surely, 2^203222230493 is an apocalyptic number.

It is an amenable number.

203222230493 is a deficient number, since it is larger than the sum of its proper divisors (1).

203222230493 is an equidigital number, since it uses as much as digits as its factorization.

203222230493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 203222230493 its reverse (394032222302), we get a palindrome (597254452795).

The spelling of 203222230493 in words is "two hundred three billion, two hundred twenty-two million, two hundred thirty thousand, four hundred ninety-three".