203403022243 has 6 divisors (see below), whose sum is σ = 208485074492. Its totient is φ = 198441971280.

The previous prime is 203403022217. The next prime is 203403022259. The reversal of 203403022243 is 342220304302.

It is not a de Polignac number, because 203403022243 - 2⁵ = 203403022211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203403022343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60498921 + ... + 60502282.

Almost surely, 2^203403022243 is an apocalyptic number.

203403022243 is a deficient number, since it is larger than the sum of its proper divisors (5082052249).

203403022243 is an equidigital number, since it uses as much as digits as its factorization.

203403022243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121001285 (or 121001244 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 203403022243 its reverse (342220304302), we get a palindrome (545623326545).

The spelling of 203403022243 in words is "two hundred three billion, four hundred three million, twenty-two thousand, two hundred forty-three".