203430009043 has 2 divisors, whose sum is σ = 203430009044. Its totient is φ = 203430009042.

The previous prime is 203430008941. The next prime is 203430009047. The reversal of 203430009043 is 340900034302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203430009043 is a prime.

It is not a weakly prime, because it can be changed into another prime (203430009047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101715004521 + 101715004522.

It is an arithmetic number, because the mean of its divisors is an integer number (101715004522).

Almost surely, 2^203430009043 is an apocalyptic number.

203430009043 is a deficient number, since it is larger than the sum of its proper divisors (1).

203430009043 is an equidigital number, since it uses as much as digits as its factorization.

203430009043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

The spelling of 203430009043 in words is "two hundred three billion, four hundred thirty million, nine thousand, forty-three".