1230230321 has 4 divisors (see below), whose sum is σ = 1230385392. Its totient is φ = 1230075252.

The previous prime is 1230230303. The next prime is 1230230341. The reversal of 1230230321 is 1230320321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230230321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230230321.

It is not an unprimeable number, because it can be changed into a prime (1230230341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64955 + ... + 81728.

It is an arithmetic number, because the mean of its divisors is an integer number (307596348).

Almost surely, 2^1230230321 is an apocalyptic number.

It is an amenable number.

1230230321 is a deficient number, since it is larger than the sum of its proper divisors (155071).

1230230321 is an equidigital number, since it uses as much as digits as its factorization.

1230230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155070.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230230321 is about 35074.6392853868. The cubic root of 1230230321 is about 1071.5081423258.

Adding to 1230230321 its reverse (1230320321), we get a palindrome (2460550642).

Subtracting 1230230321 from its reverse (1230320321), we obtain a square (90000 = 300²).

The spelling of 1230230321 in words is "one billion, two hundred thirty million, two hundred thirty thousand, three hundred twenty-one".