1230200281 has 2 divisors, whose sum is σ = 1230200282. Its totient is φ = 1230200280.

The previous prime is 1230200243. The next prime is 1230200299. The reversal of 1230200281 is 1820020321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038128400 + 192071881 = 32220^2 + 13859^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230200281 - 2²⁷ = 1095982553 is a prime.

It is a super-2 number, since 2×1230200281² = 3026785462744957922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230204281) 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, 615100140 + 615100141.

It is an arithmetic number, because the mean of its divisors is an integer number (615100141).

Almost surely, 2^1230200281 is an apocalyptic number.

It is an amenable number.

1230200281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230200281 is an equidigital number, since it uses as much as digits as its factorization.

1230200281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1230200281 is about 35074.2110531370. The cubic root of 1230200281 is about 1071.4994208243.

The spelling of 1230200281 in words is "one billion, two hundred thirty million, two hundred thousand, two hundred eighty-one".