1230210305 has 16 divisors (see below), whose sum is σ = 1537434000. Its totient is φ = 943837440.

The previous prime is 1230210277. The next prime is 1230210307. The reversal of 1230210305 is 5030120321.

It can be written as a sum of positive squares in 8 ways, for example, as 88040689 + 1142169616 = 9383^2 + 33796^2 .

It is not a de Polignac number, because 1230210305 - 2¹² = 1230206209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230210307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6866 + ... + 50075.

It is an arithmetic number, because the mean of its divisors is an integer number (96089625).

Almost surely, 2^1230210305 is an apocalyptic number.

It is an amenable number.

1230210305 is a deficient number, since it is larger than the sum of its proper divisors (307223695).

1230210305 is a wasteful number, since it uses less digits than its factorization.

1230210305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57124.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1230210305 is about 35074.3539498591. The cubic root of 1230210305 is about 1071.5023311041.

Adding to 1230210305 its reverse (5030120321), we get a palindrome (6260330626).

The spelling of 1230210305 in words is "one billion, two hundred thirty million, two hundred ten thousand, three hundred five".