1230305125 has 32 divisors (see below), whose sum is σ = 1761626880. Its totient is φ = 840340800.

The previous prime is 1230305101. The next prime is 1230305143. The reversal of 1230305125 is 5215030321.

It is not a de Polignac number, because 1230305125 - 2⁷ = 1230304997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230305096 and 1230305105.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 232762 + ... + 237988.

It is an arithmetic number, because the mean of its divisors is an integer number (55050840).

Almost surely, 2^1230305125 is an apocalyptic number.

It is an amenable number.

1230305125 is a deficient number, since it is larger than the sum of its proper divisors (531321755).

1230305125 is an equidigital number, since it uses as much as digits as its factorization.

1230305125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1230305125 is about 35075.7056236934. The cubic root of 1230305125 is about 1071.5298595249.

Adding to 1230305125 its reverse (5215030321), we get a palindrome (6445335446).

The spelling of 1230305125 in words is "one billion, two hundred thirty million, three hundred five thousand, one hundred twenty-five".