1230200243 has 2 divisors, whose sum is σ = 1230200244. Its totient is φ = 1230200242.

The previous prime is 1230200183. The next prime is 1230200281. The reversal of 1230200243 is 3420020321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230200243 - 2¹⁴ = 1230183859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1230200743) 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, 615100121 + 615100122.

It is an arithmetic number, because the mean of its divisors is an integer number (615100122).

Almost surely, 2^1230200243 is an apocalyptic number.

1230200243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230200243 is an equidigital number, since it uses as much as digits as its factorization.

1230200243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1230200243 is about 35074.2105114285. The cubic root of 1230200243 is about 1071.4994097917.

Adding to 1230200243 its reverse (3420020321), we get a palindrome (4650220564).

The spelling of 1230200243 in words is "one billion, two hundred thirty million, two hundred thousand, two hundred forty-three".