1020230089 has 2 divisors, whose sum is σ = 1020230090. Its totient is φ = 1020230088.

The previous prime is 1020230069. The next prime is 1020230143. The reversal of 1020230089 is 9800320201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840536064 + 179694025 = 28992^2 + 13405^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020230089 - 2⁷ = 1020229961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020230009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510115044 + 510115045.

It is an arithmetic number, because the mean of its divisors is an integer number (510115045).

Almost surely, 2^1020230089 is an apocalyptic number.

It is an amenable number.

1020230089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020230089 is an equidigital number, since it uses as much as digits as its factorization.

1020230089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1020230089 is about 31941.0408252455. The cubic root of 1020230089 is about 1006.6983943311.

The spelling of 1020230089 in words is "one billion, twenty million, two hundred thirty thousand, eighty-nine".