1020434203 has 2 divisors, whose sum is σ = 1020434204. Its totient is φ = 1020434202.

The previous prime is 1020434153. The next prime is 1020434221. The reversal of 1020434203 is 3024340201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020434203 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020434263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510217101 + 510217102.

It is an arithmetic number, because the mean of its divisors is an integer number (510217102).

Almost surely, 2^1020434203 is an apocalyptic number.

1020434203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020434203 is an equidigital number, since it uses as much as digits as its factorization.

1020434203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1020434203 is about 31944.2358337150. The cubic root of 1020434203 is about 1006.7655254409.

Adding to 1020434203 its reverse (3024340201), we get a palindrome (4044774404).

The spelling of 1020434203 in words is "one billion, twenty million, four hundred thirty-four thousand, two hundred three".