203020043 has 2 divisors, whose sum is σ = 203020044. Its totient is φ = 203020042.

The previous prime is 203020031. The next prime is 203020049. The reversal of 203020043 is 340020302.

203020043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203020043 - 2⁶ = 203019979 is a prime.

It is not a weakly prime, because it can be changed into another prime (203020049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101510021 + 101510022.

It is an arithmetic number, because the mean of its divisors is an integer number (101510022).

Almost surely, 2^203020043 is an apocalyptic number.

203020043 is a deficient number, since it is larger than the sum of its proper divisors (1).

203020043 is an equidigital number, since it uses as much as digits as its factorization.

203020043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 203020043 is about 14248.5102028247. The cubic root of 203020043 is about 587.7324077032.

Adding to 203020043 its reverse (340020302), we get a palindrome (543040345).

The spelling of 203020043 in words is "two hundred three million, twenty thousand, forty-three".